HUAWEI nova 7 SE can't start the machine after entering the water. Disassemble the machine and clean the corroded place in the water, redo the power supply and WiFi, replace the screen, and repair the fault.
Xiaomi 10 Youth edition black and screen crashes, and the fault is repaired after redoing CPU and font.
HONOR Play4T Pro can't be turned on, and the fault was fixed after reinstalling the battery button.
HUAWEI P40 Pro has poor Bluetooth signal, and can't search for Bluetooth devices. It is a fake antenna, and the fault is repaired.
HUAWEI Mate 9 can't be turned on, redo the CPU, fix the fault, and the mobile phone can start normally.
iPhone 13 Pro Max can't be turned on. Remove the faulty capacitor and fix the fault.
Redmi K30 Pro will restart automatically when the LOGO is turned on, and the fault will be repaired after the CPU is redone.
Xiaomi 10S screen doesn't display, the screen is broken, and the fault is fixed after changing the screen again.
HUAWEI P40 Pro speaker has no sound. Replace the same tail plug board and fix the fault.
