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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 capacitance，here 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. 


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