Redmi note 7Promobile phoneWon't Turn On, caused by the damage of power chip, after replacement, the fault recovered.
Colorful gtx1060-3gd5 graphics card, boot screen is not bright, measure Measuring diode value to find the fault point, replace the NPN transistor, the display is normal.
The iPhone XS Max cannot be started due to water ingress. It is detected that the c3795 filter capacitor is short circuited to the ground. After replacement, the fault is repaired.
The startup screen of Dell 5750 laptop is not bright. It is found that it is a bridge problem after testing. The fault is repaired after flying the line.
Dell 3421 notebook screen is dark and the backlight is not bright, which is caused by small components.
Huawei Honor 10 Youth Edition front Camera can't be used. Redo the CPU, and then repair the fault.
iPhone 7 screen does not display, FL3906 is damaged,Jump wire is directly connected, and the fault is repaired.
Huawei Mate 30 mobile phone Won't Turn On, the power chip does not work properly, after the chip is Repeat welding, the fault is repaired.
iPhone 7 Update System reported error 4014, which was found to be caused by Nand damage after testing, and the fault was repaired after replacement.
