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Xuanlong efreet T1 did not respond to maintenance by pressing the power button

Xuanlong efreet T1 did not respond to maintenance by pressing the power button. Machine model: Xuanlong efreet t1 Fault phenomenon: no standby when plugged in, no response when pressing the power-on key. Maintenance process: take it apart, buckle the small…

yx
2023-06-02

Smartphone & Pad Repair Guide

Huawei P30mobile phoneYou can’t start the machine for maintenance after a fall

The customer described that the mobile phone stopped turning on after heavy fall. After being overhauled by the master, the CPU was directly locked, and the fault was perfectly repaired.

zll
2023-06-01

Laptop Repair Guide

Asus B250M-K motherboard is not powered by CPU for repair

Asus B250M-K motherboard is not powered by CPU for repair Motherboard model: ASUS B250M-K Rev.1.01 Fault phenomenon: the motherboard does not supply power from CPU. Maintenance process: An ASUS B250M-K Rev.1.01 motherboard can trigger no CPU power supply. Asus B250M-K…

yx
2023-06-01

Laptop Repair Guide

MacBook A1932 water inlet fan turns wildly to deny battery repair

MacBook A1932 water inlet fan turns wildly to deny battery repair Machine model: MacBook A1932 Fault symptom: it can be turned on, but the fan is spinning wildly. Maintenance process: at first, I thought it was a peripheral problem, but…

yx
2023-05-31

Smartphone & Pad Repair Guide

IPhone XS Max does not start the fault repair, and the small capacitor leads to no baseband maintenance

IPhone XS Max was not turned on, and it was found that there was no baseband after replanting CPU. After adding a new capacitor, the fault was fixed.

zll
2023-05-31

Smartphone & Pad Repair Guide

Redmi K40 does not turn on, find the fault and fix it easily!

After taking out the mainboard and measuring that there is no obvious short circuit, power on it with a regulated power supply, and the current is triggered to jump at 100mA. This current power supply has obviously worked, and the current is cyclic jumping back and forth, and the jumping range is not large. Therefore, it is judged that it is a fault of CPU virtual welding. The specific maintenance process is as follows:

zll
2023-05-30

Laptop Repair Guide

AcerE1-451 notebook does not recognize battery repair

AcerE1-451 notebook does not recognize battery repair Machine model: Acer E1-451 Plate number: 12276-1 Fault phenomenon: the notebook does not recognize the battery. Maintenance process: the battery is still a red cross after replacement, and the resistance of BAT_SDA BAT_SCL…

yx
2023-05-30

Smartphone & Pad Repair Guide

iPhone XR mobile phoneWiFi can’t open maintenance experience

After the iPhone XR phone was accidentally dropped, the WiFi could not be opened. The initial judgment was that the phone was hit and the cable was loose. The following is the specific maintenance process:

zll
2023-05-29

Laptop Repair Guide

Dell G7 does not boot

When measuring the main board inductance with single board, it is found that the bridge's resistance of 1.05V is 0, which indicates that there may be something wrong with the bridge. Other inductance resistances are normal when measured. If the bridge is burnt with 1V, the bridge will be locked for short circuit damage. The specific maintenance process is as follows:

yx
2023-05-29