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Category Blog

Smartphone & Pad Repair Guide

Xiaomi 11 can’t open WiFi repair

Get the mobile phone power-on test, click to turn on WiFi, and WiFi will automatically turn off. This should be a common problem of the CPU of Xiaomi 11, and the CPU should be observed first.

zll
2023-04-13

Laptop Repair Guide

Acer A315-55G notebook maintenance without CPU power supply.

The resistance of the next 13 pins to the ground is analyzed, and it is found that the short circuit to the ground is 0. Remove the capacitor PC7026 and measure it, and it is found to be a short circuit. Find a 10 Ω resistor and capacitor from the material plate, and measure the resistance of this pin to ground to return to normal.

yx
2023-04-11

Smartphone & Pad Repair Guide

IPhone XR falls heavily without baseband, and the card has no signal repair

First, open the annotation diagram of Xinzhizhao software to find the baseband power supply and baseband CPU, and then remove the baseband CPU to replant tin.

zll
2023-04-11

Laptop Repair Guide

Lenovo 3-15ADA05 notebook running code but memory, blue screen of death common fault repair

Lenovo 3-15ADA05 notebook running code but memory, blue screen of death common fault repair This machine is too hot, which leads to the open welding of CPU crystal or the open welding of circuits nearby, which leads to the unstable…

yx
2023-04-10

Smartphone & Pad Repair Guide

Huawei nova 5i Pro can’t start the machine for maintenance when it enters the water.

Huawei nova 5i Pro can’t start the machine for maintenance when it enters the water. Machine model: Huawei nova 5i Pro Fault phenomenon: the mobile phone can’t be turned on when it is flooded. Maintenance process: This mobile phone can’t…

zll
2023-04-10

Smartphone & Pad Repair Guide

Huawei enjoys 20SE maintenance without turning on the water.

Huawei enjoys 20SE maintenance without turning on the water. By looking at the bitmap of Huawei Enjoy 20 SE motherboard in Xinzhizhuang software, it is found that there are many components and chips connected to the main power supply. The…

zll
2023-04-08

Smartphone & Pad Repair Guide

Black shark 3 can’t start the machine for repair

Eliminate the virtual soldering of CPU, handle the motherboard pad, plant tin for CPU and temporary storage, and then put it back to CPU and temporary storage in turn. Connect the power cord of the repair machine, and the starting current normally jumps above 1A.

zll
2023-04-07

Desktop PC Repair Guide

The second repair of Apple A1502 notebook does not trigger

The CPU has been changed. I'm not sure if the CPU changed at home is good or bad. Try brushing a BIOS. After brushing and installing it, directly buckle a speaker, power on Duang, and the notebook is triggered. Fault repair.

yx
2023-04-07

Smartphone & Pad Repair Guide

repair of vivo S1 Pro mobile phone without charging

There are only two capacitors and one power supply on the 5V path. After disassembling the machine, the machine was burned, and it was found that none of them gave off heat, but the board gave off heat.

zll
2023-04-06