What if Apple 7p crashes?

Iphone7/7plus black screen can't be turned on. First of all, we must eliminate software problems. If there is nothing wrong with the software, we can only detect the hardware.

Troubleshooting software can be restarted directly, but if the phone is flooded, don't try to restart it, just fix it directly.

1. Press and hold the power off button+volume down button at the same time (the power off button +home button is only useful before the 7th generation, and the 7th generation must press the volume button) until the Apple icon reappears.

2. If the Apple icon does not appear, you can only judge that it is a hardware problem.

Generally, if it is damaged or flooded, it will lead to the failure of automatic restart, black screen, wif or no network signal, call, music and so on. What is more serious is that it crashes directly and there is no boot response. This class is a hardware problem.

The above situation is generally caused by motherboard disconnection, cpu virtual welding, display ic, power ic and power ic short circuit, baseband circuit, hard disk track defect and other reasons. These can actually be repaired. If it is broken, one of them will only be repaired around 300 yuan.

But maintaining these requires engineers with high motherboard chip technology. General small shop technology is not in place, and it is easy to turn some small problems into big problems. As a result, there are too many problems with the motherboard to be repaired. Therefore, it is very important to choose a maintenance point with good technology and integrity.

The following is a magnifying glass diagram of the display ic chip found in the maintenance process, which can not be turned on, for reference: