HONOR V10 can't be turned on,How to repair

HONOR V10 can’t be turned on,How to repair

Machine model:HONOR V10

Fault phenomenon: the mobile phone can’t be turned on

Repair process: after getting the mobile phone, test the power on first, press the power on button, and the phone doesn’t respond.

HONOR V10 can’t be turned on Figure 1.

Remove the main board, use the regulated power supply to power on the main board, press the power on key, the current will jump to more than 100mA, and then drop to 70ma or so and stop.The common cause of this problem is that the Inveracious Soldering CPU does not work normally.

Check the Honor V10 annotation diagram, find the location of the power chip, and replace the power chip Repeat welding on the motherboard. After replacement, the fault is still the same.

HONOR V10 can’t be turned on Figure 2.

After the power supply is replaced, the fault is still the same, so the problem is locked in the CPU.Remove the CPU and install REBALLING again.The power supply of the veneer repair machine is turned on, and the current is normal current of change. Install the mainboard into the machine and use the battery to start the test. After the normal startup, the screen is on and the fault is repaired.