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Category Blog

Laptop Repair Guide

Dell DELL 15-3567 notebook keyboard is stuck, and battery maintenance is not recognized.

The keyboard of Dell DELL 15-3567 notebook computer is stuck, and it doesn't recognize battery maintenance. Take a look at it by brushing the BIOS first. After brushing the BIOS, it is found that the keyboard is not stuck, but it still doesn't recognize the battery, and it doesn't turn on when it is only used.

yx
2023-04-27

Smartphone & Pad Repair Guide

IPhone 11 can’t connect to WiFi and bluetooth repair

IPhone 11 can’t connect to WiFi and bluetooth repair Machine model: iPhone 11 Symptom: iPhone 11 can’t connect to WiFi and Bluetooth. IPhone 11 can’t connect to WiFi and bluetooth for maintenance. Figure 1 Maintenance process: After receiving the iPhone…

zll
2023-04-27

Laptop Repair Guide

Asus A441U notebook does not display maintenance when it is turned on.

Test the voltage of the whole board, just don't install that PQ8808, enter the system, and the switch is normal, so leave it alone. This is the end of maintenance.

yx
2023-04-26

Smartphone & Pad Repair Guide

Xiaomi 11 Youth Edition cannot be charged for repair.

Borrow a charging chip directly from another mobile phone of the same model to be repaired. After installing it, it is tested that the charging is normal, indicating that there is something wrong with the original charging chip of this machine, so replace the charging chip.

zll
2023-04-26

Laptop Repair Guide

Lenovo rescuer Y7000P does not show maintenance when starting

Lenovo rescuer Y7000P does not show maintenance when starting. Machine model: Lenovo rescuer notebook Y7000P Fault phenomenon: the customer describes that Lenovo rescuer Y7000P does not display when it is turned on. Maintenance process: Received a Y7000P from the customer,…

yx
2023-04-25

Smartphone & Pad Repair Guide

Glory 50 is seriously flooded and can’t start the machine for repair

First of all, the value of the clock is normal, that is, the internal work of the power supply is abnormal, which leads to the lack of power supply, and the CPU cannot work normally, which leads to the failure of starting the machine. After replacing the PM7325 power supply chip in the figure, the starting current is normal, but the screen does not display.

zll
2023-04-25

Smartphone & Pad Repair Guide

Xiaomi 11 Youth Edition can’t be turned on.

Xiaomi 11 Youth Edition can’t be turned on. Machine model: Xiaomi 11 Youth Edition Fault phenomenon: the customer described that the mobile phone could not be turned on. Maintenance process: After you get the phone, press the on button, and…

zll
2023-04-24

Laptop Repair Guide

Repair of Shenzhou Ares Z8-CA5NB without CPU voltage fault

Found PR42 on the back of the chip, found that the end of PR42 19V was corroded, scraped and welded, and then added a new resistor.

yx
2023-04-21

Smartphone & Pad Repair Guide

Huawei Mate10 can’t open the machine for repair

Disassemble the mobile phone, use the regulated power supply to power up the motherboard, press the power-on key, and the display current will jump to 126mA to stop. This situation is generally caused by CPU failure.

zll
2023-04-21