Skip to main content

iPhone 8 Plus boot failure- Fix it here!


The iPhone 8 Plus has boot failure, it can't be turned on. Can we fix this dead iPhone 8P? Yes, we can fix it here!

After try some simple software solutions, such as force restart iPhone, update IOS, restore iPhone 8P, but the iPhone 8 Plus still not turning on. Now we need to check iPhone hardware aspect.


First, we need to disassemble the iPhone 8P. 

Use phone opening tools to disassemble the iPhone, we found the iPhone motherboard is already badly deformed.

Second, measure the iPhone 8P.

Connect iPhone motherboard to the DC power supply, it leaks 280mA. For the badly dropped damaged iPhone, we need to check iPhone motherboard to see if there are visible signs of damage to its appearance.

Third, observe iPhone 8P

Put iPhone motherboard under the Stereo Zoom Microscope to observe, we found the U3700 camera power supply IC is cracked, use tweezers to remove this IC first.


After remove this U3700 IC, connect iPhone motherboard to the DC power supply again to check if it causes leakage problem. No leakage phenomenon when it is connected, next we need to power on it to check.

After power on iPhone, the current jumps from 3400, which is abnormal, there is short circuit place.

Fourth, repair iPhone 8P

For this current error, usually we need to measure it by digital multimeter. Measure more than 10 power supply circuits from power output to see if there is a short-circuit place.



We found the short circuit place when measured C2906 this capacitor, remove the connected capacitancehere are 2 capacitance are overheated, we need to remove them too. Now, measure it again, the data is normal. Next press the iPhone power button, now the iPhone can go into the system.

Finally, install the iPhone 8P

Install the iPhone 8 Plus, and then press the iPhone power button, the iPhone can be turned on smoothly. 

Get into IOS, test all functions on iPhone, all works well. 


Comments

Popular posts from this blog

User Manual: JC V1 Programmer to fix iPhone light sensor/vibrator

As we know, the light sensor and vibrator is very important for iPhone screen. If you want to replace the iPhone screen, you also need to transfer the original screen data to the new iPhone screen(iPhone 8 to iPhone Xs Max),so you can make sure the new iPhone screen will work fine. Here is a  JC V1 programmer  to fix iPhone light sensor and vibrator problem (for iPhone 7- iPhone Xs Max), it also can repair iPhone baseband eeprom IC or iPhone logic eeprom IC problem. The JC V1 Programmer comes with 24-inch HD display screen, three-color LED indicator light, two small connecting seats (for connecting function panel) , two buttons and one function panel (including light sensor/touch connector, baseband function connector, vibration connector) It support 2 languages (Chinese/English) and three lines of code (read/write/burn/save), the function panel can be changed, the software can automatically update What’s the functions? - Repair iPhone Light sensor/ true ...

Essential tools for a phone repair technician Everyday Use

Must-Have tools for a phone repair technician include precision screwdrivers, spudgers, tweezers, suction cups, and heat guns or hair dryers. Additionally, anti-static mats and wrist straps are crucial for protecting sensitive electronics. Other helpful tools include a multimeter, soldering iron, magnifying lamp or microscope, and various cleaning supplies.  Whether you're a DIY enthusiast or a professional technician, having the right tools is crucial for successful phone repair. Here's a breakdown of common phone repair tools, categorized for clarity: I. Essential Opening and Disassembly Tools: Precision Screwdrivers : These are the most fundamental tools. Phones use tiny screws of various types (Phillips, Pentalobe, Torx, Flathead), so a comprehensive set with magnetic tips is highly recommended to avoid stripping screws and losing tiny parts. Spudgers ( Pry Tools ): Made of plastic or nylon, these non-conductive tools are invaluable for safely prying open phone casings...

How to restore & unlock the apple watch series 1, 2, 3, 4, 5, and 6?

  Can you always remember your password? What should you do when there is a red exclamation error on your Apple watch after update you iWatch?6 IN 1   AWRT iBus   Tools, a professional Apple Watch recovery tool, enables you to unlock, repair and remove the exclamation error easily.   Why choose the AWRT iBus tool? Perhaps you would tell me Apple support team can solve the trouble. While they may help, you may not be patient enough because you want your watch fixed immediately. Moreover, you don't have to wait for too long for them to help you solve the issues. 1. This incredible device has an inbuilt original restore adapter for the apple watch of the series S1, S2, S3, S4, S5, and S6 42 mm and 38 mm /$199. There are also S1-just 38MM /$39.99, Adapter for S1-42mm 38mm /$139.99, or Adapter for S2 S3 - 42mm 38mm /$169.99 version for choosing. The tool requires professional Apple Watch Firmware  IPSW File  for iWatch S1-S6. 2. Moreover, the iBus tool has a lot...