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Heavy Samsung W2020 folding screen mobile phone without charging repair

Heavy Samsung W2020 folding screen mobile phone without charging maintenance Exclude tail plug and tail plug flat cable. Measure the resistance of 5VUSB channel, and fly the wire to the input of charging IC. Machine model: Samsung W2020 Malfunction: the…

yx
2022-12-01

Smartphone & Pad Repair Guide

Redmi Note 9 Pro touch screen failure

Redmi Note 9 Pro touch screen failure, CPU virtual welding, CPU rework, fault repair.

zll
2022-10-12

Blog

Second repair Fireshadow Golden Steel T5 laptop into the water can not turn on a case

First change BQ24781 charging chip, replace the power plugged in no standby, detection found that disconnect the main power supply of the graphics card 19V, it can be triggered normally. Find the point of failure, again the graphics card side of the problem.

yx
2022-09-30

Desktop PC Repair Guide

About the transformation test of the burning defect of the graphics card

About the transformation test of the burning defect of the graphics card

lqy01
2022-09-27

Smartphone & Pad Repair Guide

HUAWEI Mate 30 has no sound after connecting Bluetooth

HUAWEI Mate 30 has no sound after connecting Bluetooth. After making up the phone, the WiFi chip is replaced, and the fault is fixed.

zll
2022-09-22

Desktop PC Repair Guide

The main board IHM65M of OEM and upgrading technology integrated machine does not trigger repair

The main board of OEM all-in-one machine ihm65m,no power on,Repeat welding, PCH, RTC_Rst ා, stable at 2.9v, normal switch.

lqy01
2022-09-03

Blog, Laptop Repair Guide

Repair of ASUS fx86f notebook Won’t Turn On

ASUS FX86F notebook can't be turned on to measure each inductance without short circuit When PM_SUSB/C # is disconnected, the current does not jump. It is found that the power supply of VCCIO is abnormal After being removed, it is powered on to 0.15 and does not jump. After repeated confirmation, it is the problem of APW8715 chip The replaced chip is powered on and booted to test the perfect bright machine

yx
2022-08-16

Smartphone & Pad Repair Guide

Xiaomi 11 can’t open WiFi,How to repair

Xiaomi 11 can't turn on WiFi, which is the common common failing of Xiaomi mobile phone CPU. After disassembling, redo the CPU and repair the fault.

zll
2022-08-12

Desktop PC Repair Guide

ASUS B85-PRO GAMER motherboard repair without power on

ASUS B85-PRO GAMER motherboard is not powered on, 1.05 V bridge is powered on, and the flying line passes directly, and the machine lights up normally.

lqy01
2022-08-03