Repair parts iPhone 8

Your iPhone 8 Like New! Spares and Parts to Revive Your Mobile at iLevante.com 🚀

Hands up if you've got a special fondness for your iPhone 8! 🙋‍♂️ That mobile phone which, although it's a few years old now, is still a daily champion for many. But, alas, time takes its toll, and little accidents happen. A screen that's seen better days? A battery that no longer keeps up with your pace? Don't worry! At iLevante.com, we're repair geeks, and we have the complete arsenal of spares and parts to get your iPhone 8 back to its former glory, or even better!

This article is your definitive guide to getting to know your iPhone 8 inside out, understanding what can go wrong, and, most importantly, how to fix it with the quality components we offer. Get ready to become a DIY whizz or, at least, to know exactly what to ask your trusted technician!

Getting to Know the Beast: A Technical Glance at the iPhone 8

Launched back in September 2017, the iPhone 8 marked a turning point with its elegant glass and aluminium design, which not only gave it a premium feel but also paved the way for wireless charging. Goodbye tangled cables (more or less)!

Under the bonnet, this Apple gem came with the powerful A11 Bionic chip with 64-bit architecture and a neural engine, accompanied by 2GB of RAM. This translated into smooth performance for everyday tasks and many of the most demanding apps of the time. You could find it with 64GB or 256GB of internal storage (a 128GB version also appeared later), so there was plenty of space for your photos, videos, and memes!

Its 4.7-inch Retina HD display (with a resolution of 1334 x 750 pixels at 326 ppi) was a visual treat, featuring IPS technology, True Tone to adapt colours to the ambient light, and a wide colour gamut (P3). And let's not forget 3D Touch, that feature allowing different actions depending on the pressure you applied to the screen.

In terms of dimensions, we're talking about a manageable mobile: 138.4 mm высоту, 67.3 mm ширину, and 7.3 mm толщину, weighing 148 grams. And yes, it boasted an IP67 rating for dust and water resistance (up to 1 metre for 30 minutes), although, be warned! This resistance can be compromised over time and, especially, after any repair if not properly sealed with quality adhesives.

The glass used, on both the front and back, was touted by Apple as "the most durable glass ever in a smartphone" at its launch. However, as you'll know if you're reading this, no glass is unbreakable! 😉

Cracked Screen! 😭 Types of Screens for Your iPhone 8 and Which to Choose

One of the most common dramas. Your mobile slips, falls in slow motion (or so it seems), and... crack! Broken screen. But don't panic, at iLevante.com we have the solution. It's important to know that not all replacement screens are created equal. Here we explain the most common types for your iPhone 8:

• Original Screens (or Service Pack / Top Quality OEM): These are manufactured directly by Apple or its authorised suppliers, or those OEM screens that use exactly the same components and processes. They offer the same image quality, brightness, colours (Retina HD IPS), touch response, and durability as the one that came with your iPhone 8 from the factory. They are the most expensive option, but if you're looking for perfection and want to maintain all original specifications (like P3 colour reproduction and full True Tone functionality without reprogramming in some cases), this is your screen.
• High-Quality LCD IPS Screens (Aftermarket): The iPhone 8 originally uses an LCD screen with IPS technology. There are very good quality aftermarket replacements that aim to replicate the original experience. Among these, INCELL screens are a popular and highly recommended option.
  • INCELL Screens: This technology integrates the touch panel (digitiser) directly into the LCD's pixel layer, making them thinner and lighter than traditional LCDs with separate layers. They offer very good colour quality and brightness, and precise touch response, coming very close to the original experience. They are an excellent alternative if you're looking for a great balance between quality and price. Their power consumption is sometimes slightly higher than originals, but the difference is usually minimal for the average user.
• TFT LCD Screens (Aftermarket): These are a more basic and economical option within LCDs. Although functional, you'll likely notice differences in colour vibrancy (smaller colour gamut, meaning they represent fewer colours), viewing angles (colours may shift if you look at the screen инфекционист), and maximum brightness compared to the original IPS screen or a good quality INCELL screen. If budget is your main concern, they can get you out of a fix, but the visual experience won't be the same.
• And OLED/AMOLED for iPhone 8? The iPhone 8 did not originally feature an OLED screen, but an LCD IPS. However, on the replacement parts market, it's possible to find screens with OLED/AMOLED technology adapted for the iPhone 8.
  • OLED/AMOLED Advantages: They offer purer blacks (pixels turn off completely, giving "infinite" contrast), and very vibrant, saturated colours. They can also be slightly more power-efficient in certain scenarios (especially with dark backgrounds or in dark mode).
  • Considerations: Being a different technology from the iPhone 8's original panel, colour calibration and overall behaviour might vary. The quality of these aftermarket OLED screens can be inconsistent between manufacturers. They are an option if you're seeking the aesthetic of OLED colours, but bear in mind it's not the technology the iPhone 8 was originally designed for, and you might lose the colour fidelity offered by the original Retina display. Also, power consumption can be higher than the original LCD in scenes with a lot of white or bright content.

An important detail about True Tone and replacement screens: The True Tone function, which adjusts the screen's white balance to ambient light for more natural viewing, is linked to data stored in a microcontroller on the original screen. When changing the screen, even with some original screens if the repair isn't done by Apple or an authorised service with their tools, this function can be lost. To preserve it with a replacement screen (original or good quality aftermarket), it's often necessary to use a special screen programmer. This device reads data from the original screen and writes it to the new one. Many professional repair shops perform this step. If you do it yourself and want to keep True Tone, you'd need to acquire one of these programmers. Very low-quality screens or some TFTs simply won't support this function even if programming is attempted.

Most common screen problems on the iPhone 8:

• Cracked or Smashed Glass: The classic. Drops and knocks are the culprits.
• Dead or Stuck Pixels: Small black, white, or fixed-colour dots on the screen that don't change.
• Touch Issues (Ghost Touch): The screen responds on its own as if a ghost is touching it, doesn't detect touch in certain areas, or does so erratically.
• Blemishes or Lines: Dark or yellowish patches, or vertical/horizontal coloured lines appearing on the screen, often due to pressure, an internal knock, or LCD/OLED panel failure.
• Backlight Failure: On LCD screens, if the backlight fails, the screen appears very dark or emits no light, although an image might be faintly visible if an external torch is shone on it.

Battery Dead! 🔋 All About Your iPhone 8's Power

The battery is the heart of your mobile, and over time, all of them degrade. The iPhone 8 houses a lithium-ion (Li-ion Polymer) battery with an original capacity of 1821 mAh and a nominal voltage of 3.82V. The Apple Part Number (APN) usually associated with the original iPhone 8 battery is 616-00357 (or very similar variants like 616-00361 used by some high-quality replacements).

How to know if your iPhone 8 battery needs replacing? Listen to its signals! 🚦

• Reduced Lifespan: If you used to make it to the end of the day whistling and now you need the charger by mid-afternoon as if it were oxygen, that's a clear sign.
• Unexpected Shutdowns: The mobile lets you down and switches off suddenly, even when it indicates 20% or 30% charge remaining. Betrayal!
• Slow Performance: iOS is smart. If it detects a severely degraded battery, it may reduce the iPhone's performance to prevent unexpected shutdowns (this is called "performance management"). If you notice your iPhone 8 running slower than a lame horse, the battery could be the culprit.
• "Service" Message in Settings: Your iPhone tells you китайский. Go to `Settings > Battery > Battery Health`. If "Maximum Capacity" is below 80%, Apple considers the battery degraded and recommends service. A message may also appear indicating the battery can no longer deliver necessary peak performance.
• Swollen Battery: Red alert! 🚨 If you notice the screen lifting at the edges or the back cover bulging as if it's overeaten, the battery might be swollen. In this case, stop using the mobile immediately and take it to a technician or replace the battery with extreme caution, as a swollen battery is a fire or explosion risk. Handle it with gloves and protective eyewear.
• iOS "Important Battery Message" / "Unknown Part": If a battery not recognised by Apple as genuine is installed (which happens with most third-party batteries, even very good quality ones), from certain iOS versions onwards (especially on newer models, but behaviour can vary), a message may appear in `Settings > Battery` or `Settings > General > About` stating "Unable to verify this iPhone has a genuine Apple battery. Health information not available for this battery" or a similar "Unknown Part" message. This does not necessarily mean the battery is bad or dangerous, but the "Battery Health" feature in iOS will not display the maximum capacity percentage or service status. The phone and battery will function normally regarding charge and lifespan.

OEM Batteries without Logo: Original Quality Without Paying for the Apple Brand 🍏

At iLevante.com, you'll often find OEM batteries without a logo. What does this mean? OEM stands for "Original Equipment Manufacturer". This means they are batteries produced by factories that meet the same (or very similar) quality standards and use components (Li-ion cells, charge and safety control chips) of the same category as the batteries Apple installs in its new iPhones. They have passed rigorous quality controls and usually have important safety certifications (like CE, RoHS, sometimes UL or FCC; look for these marks on the battery or packaging).

The main difference is they don't carry the Apple logo, which allows them to be offered at a more competitive price. To identify a good "no-logo" OEM battery, besides certifications, check the seller's reputation, whether they offer a warranty, and if the specifications (mAh, voltage) exactly match the originals. Essentially, you're getting a battery with performance, durability, and safety very similar to an original, but without the extra cost associated with the brand. They are a smart and economical option to give your iPhone 8's autonomy a new lease of life!

Brief Guide to Changing the Battery (DIYers, proceed with caution!):

Changing the iPhone 8 battery is a repair of medium difficulty. If you don't feel confident or it gives you the creeps, it's better to go to a professional! But if you're one of the brave ones, here are the basic steps:

1. Switch off the mobile! Fundamental and obvious, but it must be said.
2. Discharge the battery: For safety, it's recommended the battery is below 25% charge before handling it.
3. Tools of the Trade: You'll need a specific iPhone tool kit (Pentalobe P2 screwdriver for the bottom screws, Phillips #000 and Tri-point Y000 for internal ones, suction cup, plastic opening picks, plastic or nylon spudger, tweezers).
4. Open the iPhone Gently: Remove the two Pentalobe screws located on either side of the Lightning port. Carefully use a suction cup on the lower part of the screen to create a small gap and insert a plastic pick to start cutting the adhesive sealing the screen to the chassis. You can apply gentle heat with a hairdryer to the edges to soften this adhesive. Beware of the flex cables connecting the screen to the logic board! The iPhone 8 opens to the right, like a book (with the "hinges" on the left side).
5. Disconnect the Battery (Priority!): Once the screen is open, locate the metal bracket covering the battery connector. Remove the screws (probably Tri-point Y000) and the bracket. Then, with a plastic spudger, carefully disconnect the battery connector from the logic board.
6. Remove the Old Battery (the "sticky" and critical part): The battery is stuck to the chassis with elastic adhesive strips. These strips usually have black tabspeasants the bottom edge of the battery. You need to pull each tab SLOWLY and STEADILY, at the lowest possible angle (almost parallel to the battery), winding it around your tweezers if necessary. Try not to break them. If they break (it's quite common), you'll have to very carefully pry the battery up using a strong plastic card or a wide, flat nylon spudger. You can apply a few drops of isopropyl alcohol (99%) around the battery edges (avoiding other components) and wait a minute for the adhesive to weaken. NEVER use sharp metal tools to pry directly under the battery, as you could puncture it and cause a fire. Be patient and apply gradual force.
7. Install the New Battery: Clean any old adhesive residue from the chassis. Place the new iPhone 8 specific adhesive strips (either on the new battery or in the chassis recess). Connect the new battery to the logic board and replace the metal bracket and its screws.
8. Close the iPhone: Reconnect the screen cables (if you disconnected them beyond the battery's), close the phone carefully, ensuring it clicks инфекционист all edges, and refit the two bottom Pentalobe screws. Consider replacing the screen frame adhesive if you want to try and maintain some splash resistance.
9. Calibration (Recommended for the new battery): Once fitted, charge the new battery to 100% and leave it charging for another couple of hours. Then, use the iPhone normally until it switches off due to low battery. Finally, charge it again to 100% without interruption. This helps the system recognise the new battery's levels.

Goodbye Scratches! Back Covers for a Brand New, Colourful iPhone 8 🌈

The iPhone 8 was the model that brought back glass to the rear since the iPhone 4S, a stylistic choice that was also key to enabling wireless charging. It looks spectacular, but it also means there's another glass surface liable to break if the mobile decides to explore gravity on its own!

Original Colours the iPhone 8 Shone In:

• Silver: A classic, elegant, and timeless choice.
• Space Grey: Sophisticated and discreet, with a black front.
• Gold: For the iPhone 8, Apple opted for a more subtle and warm gold tone, sometimes described as "pale rose gold" or with coppery hues. Very chic.
• (PRODUCT)RED™: A special edition in a vibrant, eye-catching red, which also contributed to a good cause. Also with a black front.

If your iPhone 8's back cover looks like a road map from cracks or is more scratched than an old vinyl record, replacing it can make your mobile look 브랜드 new.

How do you change the iPhone 8's back cover? Warning, Mission (Almost) Impossible for Novices! 💣

Let's be direct: this is one of the most difficult and tedious repairs on an iPhone 8, even for experienced technicians. The reason for such complication?

• NASA-Level Adhesive: Apple uses an extremely strong adhesive to bond the rear glass panel to the aluminium chassis. It's not just any glue; it's a very powerful bond!
• Delicate Components Glued or Nearby: The wireless charging coil is glued to the inner face of the rear glass. Additionally, other small components and flex cables are very close to the edges and can be easily damaged during the process.
• High Risk of Collateral Damage: It's very easy to damage the aforementioned wireless charging coil, the battery (if punctured while prying), flex cables, or even the logic board if extreme care and proper tools are not used. Further shattering the glass and cutting yourself are also real risks.

Replacement methods (and their "pain" level):

1. Glass-Only Replacement (Expert+ Level with Pro Tools):
   • This method involves heating the back cover with a heat gun (with precise temperature control, ideally between 80-100°C) to try and soften that infernal adhesive.
   • Then, with very thin and strong prying tools (and immense patience and eye/hand protection), the pieces of broken glass are removed, one by one. It's a long, meticulous process that generates many glass shards.
   • Professionals often use special laser machines that selectively burn away the adhesive under the glass, making its removal much easier without applying as much brute force and reducing the risk of damaging the charging coil. These machines are expensive and not for home use.
2. Full Chassis Replacement with Pre-installed Back Cover (Advanced Level):
   • This option involves acquiring a new chassis (the phone's metal frame) that already comes with the new glass back cover installed from the factory.
   • Although this avoids the critical part of removing the broken glass from the original chassis, this repair involves a complete transplant of ALL internal components from your iPhone 8: logic board, battery, screen, cameras, speakers, Taptic Engine, all flex cables, buttons, etc., to the new chassis. It is, literally, rebuilding the phone from scratch in a new "bodywork". Very laborious and with countless points where something can go wrong if one lacks experience and is not extremely organised with the tiny screws and parts. Even the smallest stickers and brackets must be transferred if the new chassis doesn't include them.

In summary: For the back cover, if you're not a professional technician with specific experience in this type of repair and the right tools (ideally a laser machine for glass-only, or the expertise for a full transplant), we strongly recommend seeking a specialised technical service. At iLevante.com, we offer the best quality back covers and chassis so your trusted technician can perform the "surgery" with guarantees.

Star Spares for Your iPhone 8: The Most Wanted at iLevante.com! ✨

Here's a list of the most popular and sought-after replacement parts for the iPhone 8. Think of them as the "greatest hits" our customers ask for most at iLevante.com. We give you the key information so you know what they are and when you need them:

• Power and Volume Button Flex for iPhone SE 2020 / iPhone 8 / SE 2022 (Full Flex):
  • Main Function: This component is a flexible cable (flex) that integrates the electrical contacts for the power/lock button, the volume up/down buttons, and often the mute switch. It may also include the LED flash and a microphone associated with noise cancellation or rear video recording, although on the iPhone 8 the main flash is with the rear camera.
  • Failure Symptoms: Buttons not responding when pressed, getting stuck, working intermittently, or requiring a lot of pressure. The mute switch not activating/deactivating silent mode.
  • Relevant Info: It's a delicate part, and its replacement requires opening the phone. Compatibility between iPhone 8 and SE models (2020 and 2022) is common due to their very similar internal design. Some replacement parts come with the small metal brackets pre-installed, which slightly eases assembly.
• Lightning 8-pin USB Cable for iPad and iPhone Compatible:
  • Main Function: Essential for charging your iPhone 8's battery and for synchronising data (photos, music, backups) with a computer.
  • Relevant Info: To ensure safe charging and stable data transfer, look for cables with MFi (Made for iPhone/iPad/iPod) certification. Good quality cables often have a braided nylon coating for increased durability and reinforced connectors to prevent them from bending or breaking easily. Using low-quality cables can damage the battery or charging port in the long run, and even the Tristar (U2) chip on the logic board.
• Front Camera iPhone 8, SE 2020, SE 2022 with Proximity Sensor:
  • Main Function: This module is an assembly that includes the 7-megapixel front camera (for selfies and FaceTime video calls), the proximity sensor (which turns off the screen when you hold the mobile to your ear during a call), the ambient light sensor (which automatically adjusts screen brightness according to ambient light), and usually a secondary microphone for FaceTime and noise cancellation.
  • Failure Symptoms: Blurry or poor-quality selfies, the camera app closing when trying to use the front camera, the screen not turning off during calls, automatic screen brightness not working correctly, or audio problems in video calls if this module's microphone is affected.
  • Relevant Info: Compatibility of this module between iPhone 8 and SE models (2020/2022) is frequent. Its replacement involves handling the upper part of the screen assembly and is a delicate repair. It's crucial to transfer this assembly correctly to a new screen to maintain all functions.
• Rear Camera for iPhone 8:
  • Main Function: It's the device's main camera, a 12-megapixel sensor with optical image stabilisation (OIS), capable of taking high-quality photos and recording video up to 4K.
  • Failure Symptoms: Blurry or stained photos, camera unable to focus (or erratic focus), camera app showing a black screen when selecting the rear camera, or app closing unexpectedly. The LED flash might also stop working if the problem affects the entire module.
  • Relevant Info: Ensure the replacement part is specific to the iPhone 8 model. Installation requires opening the phone and carefully disconnecting the camera module from the logic board. Sometimes, after a replacement, a non-critical "Unknown Part" message may appear in Settings if iOS doesn't recognise the new module's serial number, even if the camera works perfectly.
• Battery FPC Connector for iPhone X / 8 / 8 Plus 6-Pin (on logic board):
  • Main Function: This is the physical connector that is soldered directly onto the iPhone's logic board. It's the socket where the battery's flex cable plugs in. It's not part of the battery itself, but of the board.
  • Failure Symptoms: The phone doesn't turn on, doesn't charge the battery, or the battery isn't recognised by the system, even after trying a new, functional battery. This problem often occurs due to physical damage to the board's connector during a previous repair (bent, detached, or broken pins due to mishandling).
  • Relevant Info: This is an advanced micro-soldering repair! Replacing this FPC connector requires expert micro-soldering skills, specialised tools (microscope, hot air soldering station, etc.), and a steady hand. It's not a repair for beginners. 6-pin compatibility is one thing, but the exact shape and size of the connector must be correct for the iPhone 8's board.
• Charging Port for iPhone 8 (Lightning Connector Assembly):
  • Main Function: This component is a flex cable assembly that usually includes the Lightning connector (for charging and data connection), the main microphone (the one you speak into during calls, located at the bottom of the phone), and often integrates connections for the device's lower antennas and, in some cases, contacts for the Taptic Engine or bottom speaker.
  • Failure Symptoms: The iPhone 8 doesn't charge or does so intermittently (you have to wiggle the cable), the computer doesn't recognise the device when connected via USB, people can't hear you well during calls (main microphone problem), or even signal coverage issues if antenna connections are affected.
  • Relevant Info: It's a complex repair because this flex is located at the bottom of the phone, and accessing and replacing it requires dismantling several other components, like the speaker and Taptic Engine. There are many small and different screws.
• Back Cover for iPhone 8:
  • Main Function: Protects the phone's internal components and, being glass, enables wireless charging functionality.
  • Failure Symptoms: Broken, cracked, or deeply scratched glass that affects aesthetics or structural integrity, potentially even exposing internal components or the wireless charging coil.
  • Relevant Info: As detailed extensively in its section, glass-only replacement is extremely complicated for DIY without professional tools (laser). The alternative is a full chassis with pre-installed glass, which involves a total transplant of all internal components. Ensure you choose the correct colour for your model (Silver, Space Grey, Gold, or the (PRODUCT)RED™ edition).

And There's More! Other Essential Spares for Your iPhone 8 You Should Know About 🧩

Besides the "greatest hits" in repairs, your iPhone 8 is a small universe of components that, although less frequently, may also need replacing. Knowing them will help you better diagnose any problem:

• Taptic Engine:
  • Function: It's responsible for the vibration and haptic feedback so characteristic of iPhones. It provides everything from call vibrations to subtle tactile confirmations from the operating system and the "click" of the Home button (which on the iPhone 8 isn't a real mechanical button but simulates the click via the Taptic Engine).
  • Failure symptoms: Total absence of vibration, weak or erratic vibration, strange noises when vibrating.
• Earpiece Speaker:
  • Function: It's the small speaker located at the top front of the phone, through which you hear audio during phone calls. On the iPhone 8, it also contributes to stereo sound when playing music or videos.
  • Transfer: When changing the screen, this component, along with the front camera and sensor assembly, must be carefully transferred from the old screen to the new one to maintain all functionalities.
• Main Loudspeaker / Buzzer:
  • Function: It's the larger speaker, usually located at the bottom of the iPhone, next to the Lightning port. It's responsible for ringtones, alarms, music and video playback in speakerphone mode, and is the other channel for stereo sound.
  • Failure symptoms: No sound for ringtones or multimedia, very low-quality sound, distorted or crackly sound, or very low volume.
• Antennas (Wi-Fi, Bluetooth, Cellular, GPS, NFC):
  • Function: The iPhone 8 has a complex system of antennas for all its wireless communications. These can be small flex cables, metal contacts, or integrated into other larger components (like the charging port flex).
    • Wi-Fi/Bluetooth: For connection to Wi-Fi networks and Bluetooth devices.
    • Cellular: Multiple antennas for connection to the mobile network (2G, 3G, 4G LTE).
    • GPS: For location services.
    • NFC (Near Field Communication): Mainly for Apple Pay. The NFC antenna is usually at the top of the phone, often integrated with or near the wireless charging coil.
  • Failure symptoms: Persistent Wi-Fi or Bluetooth connection problems (weak signal, disconnections), "No Service" or poor mobile coverage despite being in a good signal area, inaccurate or non-functional GPS, failures when trying to use Apple Pay.
• Home Button Flex with Touch ID:
  • Function: Connects the physical Home button (which also houses the Touch ID fingerprint sensor) to the logic board.
  • Failure symptoms: Home button not responding when pressed, or Touch ID function not recognising fingerprint or not working at all.
  • BEWARE OF TOUCH ID! This is a critical point. The original Touch ID sensor is cryptographically paired at the factory with your iPhone's logic board for security reasons. If you replace the entire Home button assembly (even with an original Apple part, if not through their authorised service which can perform recalibration), you will permanently lose Touch ID functionality. The button might still work to go to the home screen (as a simple button), but not for fingerprint unlocking or authorising payments. If only the flex cable is damaged but the original sensor is intact, a highly specialised micro-soldering repair could, in theory, save it, but it's extremely difficult and risky. When changing the screen, this button and its cabling must be transferred with utmost care.
• SIM Tray:
  • Function: The small removable tray where the Nano-SIM card is placed.
  • Failure symptoms: If lost, bent, or broken, you won't be able to insert the SIM correctly, and the phone won't detect the mobile network.
• Wireless Charging Coil:
  • Function: It's an induction coil, usually adhered to the inner side of the glass back cover, that allows the iPhone 8 to be charged wirelessly with Qi-compatible chargers.
  • Failure symptoms: iPhone not charging wirelessly, intermittent or very slow wireless charging, or phone overheating excessively during wireless charging. This component is very delicate during back cover replacement.
• Screws and Small Internal Brackets:
  • Function: Although it may seem trivial, every screw and every small metal bracket inside the iPhone has a specific function, whether it's to hold components, shield connectors (EMI shields), or provide grounding.
  • Failure symptoms: Losing screws or not putting them back correctly (or worse, putting a long screw where a short one goes) during a repair can lead to loose components, bad contacts, logic board damage ("long screw damage"), or even short circuits. Order and precision are key!

Common Hardware Problems on the iPhone 8: A Technician's Diagnosis 👨‍🔧

From a repair technician's perspective, there are certain hardware problems we frequently see in the iPhone 8, some of which go beyond a simple faulty part and can involve the logic board:

• Charging Port Failures (beyond the flex): Sometimes, the problem isn't just with the Lightning port's flex cable, but with the Tristar/Hydra (U2 IC) chip on the logic board, which controls charging and USB communication. If this chip fails, the phone may not charge, show false charging, or not be recognised by a computer, even with a new port. Requires micro-soldering.
• Audio Issues Related to the Audio IC: Similar to the infamous "Loop Disease" of the iPhone 7 (though less prevalent in the 8), the iPhone 8 can also suffer problems with its Audio IC chip on the logic board.
  • Symptoms: Earpiece speaker or microphone not working during calls, speaker icon greyed out and cannot be activated, Voice Memos app not recording, or phone taking a very long time to boot or getting stuck on the Apple logo. Requires micro-soldering.
• Touch ID Failures (board-related): If the Home button is original and its flex is fine, but Touch ID still doesn't work, there could be a problem with the circuit on the logic board it connects to, or damage to the communication lines between the sensor and the A11 chip's Secure Enclave.
• "No Service" Issues due to Baseband Failure: If, after ruling out antenna, SIM, or software problems, the iPhone still has no service or is constantly searching for a network, it could be a failure in the baseband circuit (the part of the logic board that manages cellular connection) or its firmware. This is a complex board repair. Apple had a repair programme for some iPhone 7s with this issue, and although not as widespread on the 8, baseband failures can occur.
• Short Circuits on the Logic Board: Can be caused by liquid damage, an incorrect screw in the wrong place during a previous repair ("long screw damage"), or component failure (capacitor, IC).
  • Symptoms: Phone not turning on, overheating excessively in a specific spot, battery draining very quickly without explanation. Diagnosing and repairing board shorts requires specialised equipment and electronics knowledge.
• Liquid Damage: Although the iPhone 8 has IP67 resistance, it's not infallible, and this resistance diminishes over time and after any opening. Liquid can cause corrosion on the logic board and connectors, leading to a multitude of erratic and progressive failures. The liquid contact indicators (LCI) inside the phone can confirm this exposure.
• NAND Memory (Storage) Problems: In rare cases, a failure in the NAND memory chip can cause the phone not to boot, get stuck on the logo, show errors when trying to restore with iTunes/Finder (errors 9, 14, 4013, 4014), or have constant reboots. Sometimes, reprogramming or replacing the NAND (very advanced) can fix it.

These deeper hardware problems, especially those involving the logic board, usually require the intervention of a technician specialised in micro-soldering and component-level diagnostics.

Software Plays Tricks Too: When Faults Look Like Hardware 👻

Not all that glitters is a broken component! Sometimes, your iPhone 8 can exhibit symptoms that would make you swear a part has died, but the real culprit is hiding in the software. As technicians, it's always crucial to rule out these "false positives" before wielding the scalpel:

• Unexpected Reboots or Boot Loops: Your iPhone reboots on its own repeatedly, or gets stuck showing the Apple  logo.
  • Common Software Causes: A failed iOS update (corrupted files, interruption during installation), a misbehaving app, critically low storage space preventing the operating system from functioning correctly, or even a damaged configuration profile.
  • Technical Diagnosis: Before suspecting a logic board or battery fault, a forced restart is attempted. If that doesn't work, an attempt is made to update or restore the system via a computer (recovery mode or DFU mode). Always with a prior backup if possible!
• "No Service" or Persistent Coverage Issues: The iPhone doesn't connect to the mobile network, or the signal is extremely weak.
  • Common Software Causes: Incorrect network settings, a pending or failed carrier settings update, an iOS bug, or simply having Aeroplane Mode accidentally enabled.
  • Technical Diagnosis: Aeroplane Mode is checked, network settings are reset (`Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings`), and checks are made for iOS or carrier updates.
• Unresponsive Touchscreen or "Ghost Touch": The screen doesn't respond to your fingers in some areas or, worse, seems to have a mind of its own and presses itself.
  • Common Software Causes: A one-off iOS glitch, an app that has frozen touch response, or sometimes calibration issues that can arise after an update. A dirty screen or a faulty screen protector can also cause this.
  • Technical Diagnosis: A forced restart is the first step. Clean the screen and remove the protector. If the problem is intermittent, one can observe if it occurs with specific apps. In more persistent cases, a software restore may be necessary before blaming the screen. (Although, certainly, "ghost touch" can also be a hardware fault of the touch panel).
• Unusually Fast Battery Drain: The battery depletes much faster than normal, even with little use.
  • Common Software Causes: A background app consuming an excessive amount of resources (you can check this in `Settings > Battery`), location services constantly active for many apps, excessive push notifications, or an iOS bug causing high power consumption. A poor network signal also makes the phone use more battery trying to connect.
  • Technical Diagnosis: Battery usage by app is reviewed, background refresh for suspicious apps is disabled, location and notification settings are checked.
• Overheating for No Apparent Reason: The iPhone gets very hot even when you're not performing demanding tasks.
  • Common Software Causes: Similar to battery drain, an uncontrolled software process, an app with memory leaks, or intensive background CPU usage can cause overheating. File indexing after a major iOS update can also temporarily heat the device. Using the phone while it's charging intensively will also heat it.
  • Technical Diagnosis: Temperature is monitored, and an attempt is made to identify if it coincides with the use of any app or process. It's recommended not to use very thick cases if overheating is a problem.
• Apps Crashing or General Sluggish Performance:
  • Common Software Causes: Outdated apps, app incompatibility with the current iOS version, lack of storage space, or corrupted system files.
  • Technical Diagnosis: Ensure both iOS and apps are updated, free up storage space, and as a last software resort, consider a restore.
• Camera App Showing Black Screen or Freezing:
  • Common Software Causes: A one-off glitch in the Camera app, a conflict with another app using the camera, or an iOS bug. Sometimes, incorrectly configured privacy restrictions.
  • Technical Diagnosis: Force quit the Camera app, restart the iPhone. If the problem persists, check if it occurs with other apps that use the camera (Instagram, WhatsApp, etc.).
• Audio Problems (no sound, distorted sound, mic not working):
  • Common Software Causes: Mute switch engaged, volume set to minimum, iPhone connected to a Bluetooth audio device (headphones, speaker) and sound is being routed there, a specific app having audio issues, or an iOS glitch. "Do Not Disturb" mode can also mute calls and notifications.
  • Technical Diagnosis: All volume and sound settings are checked, Bluetooth devices are disconnected, tests are run in different apps.

The technician's golden rule: Always try the least invasive software solutions first (restart, check settings, updates) before assuming a hardware fault and proceeding to dismantle the device. A full iOS restore (after a backup) is often the final step to rule out a software problem before diagnosing a hardware failure.

Basic Repair Guides: Get to Work (Very Carefully)! 🛠️

If you consider yourself brave and want to attempt some of the most common repairs on your iPhone 8, great! But before you dive in, we want to give you some basic outlines and, above all, many precautions. These are not exhaustive step-by-step guides (for that, we strongly recommend you look for detailed visual tutorials on specialised repair sites), but general guidance so you know what you're up against.

🚨 PRECAUTIONS BEFORE TOUCHING A SINGLE SCREW! 🚨

• BACKUP! We can't say it enough. Make a full backup of your data to iCloud or a computer. Better safe than sorry for lost data!
• LOW BATTERY: Work with your iPhone battery below 25% charge. A fully charged lithium battery is more prone to catching fire if accidentally punctured during repair.
• SUITABLE WORKSPACE: Find a clean, flat, well-lit, and uncluttered surface. An anti-static mat is ideal. Have small containers or a magnetic tray handy to organise the tiny and varied screws. Don't mix them up; their length matters! A common mistake is "long screw damage": putting a longer screw where a short one goes can pierce layers of the logic board and cause irreparable damage. Be very careful with this!
• CORRECT TOOLS: Invest in a good mobile phone repair tool kit. For the iPhone 8, you'll need at least:
  • Pentalobe P2 screwdriver (for the two bottom screws palavras the Lightning port).
  • Phillips #000 screwdriver (for many internal screws).
  • Tri-Point Y000 screwdriver (for other internal screws, especially those holding connector shields).
  • Suction cup to help lift the screen.
  • Plastic opening picks or a thin, flat opening tool.
  • Plastic or nylon spudger to disconnect cables and pry gently.
  • Fine-tipped tweezers (preferably anti-static and non-magnetic).
  • (Optional but highly recommended) Heat gun or hairdryer (on low setting) to soften adhesives.
• DISCONNECT THE BATTERY FIRST: Once you open the phone and have access to the internal connectors, ALWAYS disconnect the battery connector BEFORE touching or disconnecting any other component. This prevents accidental short circuits that can damage the logic board.
• GENTLE WITH FLEX CABLES: The flex cables connecting components are extremely fragile. Disconnect them using a plastic spudger, prying gently at the edge of the connector (ZIF - Zero Insertion Force, or "pop" type), never on the cable itself. When reconnecting, ensure they are properly aligned before pressing. You should feel a slight "click" when they engage correctly. Do not force the connection.
• SCREW ORGANISATION: We've said it before, but we insist. iPhone screws are not only small but also have different lengths and types. Putting a long screw in a short hole can irreparably damage the logic board. Organise them meticulously and note where each one comes from! Use a magnetic mat or draw a diagram.
• PATIENCE AND NO FORCE: If something doesn't give way easily, re-check the guide or tutorial you're following. Forcing things usually ends in more breakages and frustration.
• PERSONAL PROTECTION: Wear safety glasses, especially if you're handling broken glass. Thin gloves can also be useful.
• STATIC ELECTRICITY (ESD): Discharge static electricity by touching a large, grounded metal object before you start, or use an anti-static wrist strap. ESD can damage sensitive electronic components.

1. iPhone 8 Screen Replacement (Difficulty: Medium)

• Symptoms requiring it: Broken or cracked screen, dead pixels, severe touch problems (if not software-related), persistent blemishes or lines on the image, backlight failure.
• Basic Process Outline:
  1. Switch off the iPhone completely. Remove the two Pentalobe screws located on either side of the Lightning port.
  2. Gentle heat (optional but recommended): Apply a little heat with a hairdryer (on low power and moving it constantly) around the screen edges for a minute or two to soften the waterproof adhesive sealing it to the frame. Do not overheat.
  3. Opening: Place a suction cup on the lower part of the screen, avoiding the Home button. Pull gently but firmly on the suction cup to create a small gap between the screen assembly and the phone's frame. Insert a thin plastic pick or a slim opening tool into this gap. Carefully slide the pick along the side and top edges to cut the adhesive. The iPhone 8 opens to the right (like a book, with the imaginary hinges on the left side when looking at it инфекционист, and the screen cables on the right side). Do not lift it more than 90 degrees initially due to the flex cables still connecting it!
  4. Connector Shields: Once the screen is open and carefully propped up, you'll see small metal shields covering the battery, screen, and front camera/sensor assembly connectors on the logic board. Remove the screws (Tri-Point Y000 and Phillips #000) holding them. Organise these screws инфекционист!
  5. Crucial Disconnections: Using a plastic spudger, disconnect the battery connector first. This is vital. Then, carefully disconnect the screen's flex cables (usually two) and the upper assembly's flex cable (front camera, earpiece, sensors).
  6. Component Transfer (Critical Step): If your new screen is just the LCD/touch panel, you'll need to transfer several components from your old screen to the new one. These usually are:
     • The front camera, earpiece speaker, and proximity/ambient light sensor assembly (all this usually comes on a single flex).
     • The Home button/Touch ID. This is the most delicate. Its flex cable is fragile, and as mentioned, if you damage the original Touch ID sensor or its cable, you'll lose fingerprint functionality. You must transfer it with extreme care.
     • The metal backplate shield behind the LCD.
     Each of these components has its own small screws. Maximum organisation!
  7. Connection and Preliminary Test: Connect the cables of the new screen and transferred components to the logic board. Connect the battery last. Before fully closing the phone, switch it on and thoroughly test all functions: touch all over the surface, image (colours, brightness), True Tone (if the screen is compatible and the data from the original screen's chip could be transferred with a programmer), front camera, earpiece speaker, proximity sensors, and Home button/Touch ID.
  8. Sealing (Optional): If everything works correctly, switch off the phone and disconnect the battery again. If you want to try and restore some of the original water resistance, clean the edges of the phone frame and new screen инфекционист and apply new iPhone 8 specific waterproof adhesive strips.
  9. Final Closure: Reconnect the battery. Carefully close the screen, ensuring it fits инфекционист into the frame on all sides, starting from the top and then gently pressing the sides until it clicks into place. Refit the two bottom Pentalobe screws.

2. iPhone 8 Battery Replacement (Difficulty: Medium-Low, but risky if the battery is punctured)

• Symptoms requiring it: Battery lasting very little time, unexpected shutdowns when charge is still indicated, phone performance reduced by iOS power management, "Service" message in Settings Battery Health, or a visibly swollen battery.
• Basic Process Outline:
  1. Follow steps 1 to 5 of the screen replacement guide to switch off the iPhone, open it carefully, and disconnect the battery. You don't need to completely disconnect the screen if you can prop it up safely, but removing it will give you more space and safety.
  2. Battery Adhesive Strips: The iPhone 8 battery is firmly held to the chassis by two or more elastic adhesive strips. Look for the small black tabs of these strips at the bottom edge of the battery.
  3. Removing Adhesive Strips (the most "fun" and sometimes frustrating step): Using blunt-nosed tweezers, grab one of the black tabs. Pull it SLOWLY, GENTLY, and STEADILY, at the lowest possible angle (almost parallel to the battery), as if you were pulling a very long, delicate piece of chewing gum from under furniture. Try to maintain even tension and not to break the strip. If you do it right, the strip will come out инфекционист from under the battery. Repeat with the other strips.
  4. If the Strips Break (Patience!): It's very common for one to break. If this happens, DO NOT try to pry with sharp metal objects directly under the battery, as you could puncture it and cause a short circuit or fire. One technique is to apply a few drops of high-purity isopropyl alcohol (99% or more) around the battery edges (avoiding other components) and wait a minute or two for the alcohol to weaken the remaining adhesive. Then, you can try to slide a thin but sturdy plastic card (like an old credit card or a thick guitar pick) under the battery to gradually unstick it. You can also use strong dental floss, sliding it underneath. Apply very gentle heat to the back of the chassis (where the battery is) with a hairdryer to help soften the adhesive, but be very careful not to overheat.
  5. Installing the New Battery: Once the old battery is removed, clean any adhesive residue from the chassis recess. Place new iPhone 8 specific adhesive strips (these usually come with the replacement battery or are bought separately). Place the new battery in its spot, aligning it correctly with the connector, and press firmly for the adhesive to take hold.
  6. Reconnection and Closure: Connect the battery connector to the logic board. Replace the battery connector shield and its screws. If you disconnected the screen, reconnect it and replace its shield. Carefully close the phone and refit the bottom Pentalobe screws.
  7. Calibration (Recommended): After replacement, it's a good idea to calibrate the new battery. Charge it to 100% and continue charging for at least 2 more hours. Then, use the iPhone until it switches off due to low battery (0%). Finally, charge it again to 100% uninterrupted. This helps the operating system accurately read the new battery's levels.

3. iPhone 8 Charging Port (Lightning Connector Assembly) Replacement (Difficulty: High)

• Symptoms requiring it: iPhone not charging or charging intermittently (you have to wiggle the cable), computer not recognising it when connected via USB, main (bottom) microphone not working well in calls or people can't hear you.
• Basic Process Outline (This is complex and requires a lot of patience and organisation, very summarised):
  1. Follow steps to switch off, open the iPhone, and disconnect the battery. It's highly recommended to remove the screen completely for this repair, as you'll need a lot of room to manoeuvre at the bottom of the phone.
  2. Dismantling Lower Components: You'll need to remove several components obstructing access to the charging port assembly. This usually includes the main loudspeaker and the Taptic Engine. Each of these has its own screws (some Phillips, others may be standoff or different types) and connectors that need to be carefully disconnected.
  3. Identifying the Charging Port Flex: The charging port assembly is a long flex cable with several branches that connects to the logic board at one or more points. Besides the Lightning port itself, this flex usually integrates the main microphone, contacts for the lower antennas, and sometimes connections for the speaker or Taptic Engine.
  4. Careful Disconnection and Removal: Very carefully disconnect the charging port flex from the logic board. It will be secured to the chassis by several small screws and possibly some adhesive in certain areas. Remove all screws (note where each one goes!) and carefully peel off the old assembly. Pay very close attention to how the microphones (they often have small rubber gaskets) and antenna contacts are positioned so you can replicate it with the new part.
  5. Installing the New Assembly: Place the new charging port assembly, ensuring all screw holes align perfectly and that microphones and antenna contacts are well-positioned and seated. Connect it to the logic board.
  6. Meticulous Reassembly: Reinstall the Taptic Engine, loudspeaker, and all other components and screws in reverse order. Ensure no cables are pinched. Connect the battery (last of the internal connections), close the phone, and thoroughly test charging, data synchronisation with a computer, and the main microphone by making a call or a voice recording.

4. iPhone 8 Glass Back Cover Replacement (Difficulty: Extremely High - Not Recommended for DIY without experience and professional tools)

• Symptoms requiring it: Broken, cracked, or shattered glass back cover.
• Basic Process Outline (Glass-Only Method - DANGEROUS AND VERY DIFFICULT!):
  1. Full or Near-Full Internal Dismantling: Although some attempt it with components inside (very risky), it's "safer" (relatively speaking) to remove practically all internal components: screen, logic board, battery, cameras, etc. This is to avoid damage from the extreme heat needed and by the tools used to remove the glass. This already turns the repair into a mammoth task.
  2. Application of A Lot of Controlled Heat: Constant and controlled heat (around 80-100°C, with great care) needs to be applied to the glass back cover with a heat gun to try and soften the incredibly strong adhesive bonding it to the metal frame. Special care must be taken not to overheat and damage sensitive components like the wireless charging coil (which is glued to the inside of the glass) or any other component if not everything has been dismantled.
  3. Slow, Dangerous, and Fragmented Glass Removal: Using thin and strong tools (like thin precision blades, very thin metal spudgers, and always with thick gloves and safety goggles), the glass is broken and lifted piece by piece. It's an extremely slow, tedious process that generates a huge amount of very sharp glass shards. It's very easy to cut yourself or damage the aluminium frame, the wireless charging coil, or small flex cables that might be near the edges.
  4. Exhaustive Frame Cleaning: Once (and if) all the broken glass is removed, all the old adhesive and glass debris must be meticulously cleaned from the metal frame. This surface must be perfectly clean and smooth.
  5. Wireless Charging Coil: If the original wireless charging coil has been saved (it's very fragile and glued to the old glass), it must be very carefully detached and transferred to the new glass panel or frame. Many replacement panels do not include it.
  6. New Adhesive and New Glass Placement: Apply new, specific adhesive for the iPhone 8 back cover (these are usually pre-cut sheets or special liquid adhesive). Place the new glass panel with extreme precision. Clamps or some form of press are often used to ensure a strong, uniform bond while the adhesive cures.
  Alternative (Full Chassis Replacement with Pre-installed Glass): As mentioned in the back covers section, replacing the entire chassis (metal frame + already installed rear glass) avoids the hell of removing the broken glass from the original frame. However, it requires a complete transplant of absolutely all internal components of the iPhone to the new chassis, which is an equally Herculean task prone to errors if one lacks extensive experience and organisation.

Your iPhone 8 Deserves a Second Chance! Trust iLevante.com

We hope this mega-article has been very useful for you to better understand the universe of your iPhone 8 and the possibilities you have to keep it in top shape. At iLevante.com, our passion is to offer you not only the highest quality spares and parts for your iPhone 8, but also the information and knowledge so you can make the best decisions about its care and repair.

Whether you feel confident enough to embark on the "Do It Yourself" (DIY) adventure or prefer to rely on the experience and skill of a professional technician, we are here to support you! We want your iPhone 8 to continue being your faithful companion for much longer. 💪

Visit our online shop iLevante.com, explore our extensive catalogue of spares for iPhone 8, and if you have any doubts or need advice, don't hesitate to contact us! Our team of experts will be delighted to help you find exactly what you need to get your iPhone 8 roaring like new again.