Address
304 North Cardinal
St. Dorchester Center, MA 02124

Work Hours
Monday to Friday: 7AM - 7PM
Weekend: 10AM - 5PM

Category Blog

Laptop Repair Guide

The second repair of ASUS A555L notebook won’t work

I found a standby chip UP1589 on the material board again and put it on. The notebook can start automatically. After installing it, I entered the system once, and as a result, I pressed the switch and turned it on again, and there was no response.

yx
2023-04-20

Smartphone & Pad Repair Guide

Redmi K40 automatic restart repair

Restarting this kind of fault is more common because the power-on key damaged the previous motherboard. The mobile phone has been disassembled before, so it can be easily disassembled. Observing the motherboard, it is found that the power-on cable is damaged.

zll
2023-04-20

Laptop Repair Guide

Lenovo Xiaoxinchao 7000-13 notebook is not powered on for repair.

After disassembling the test, it was found that the power supply did not pass through the common terminal, and the resistance of the common terminal was measured at 0 ohm. It means that the short circuit caused the protection. After measuring each large inductance and disconnecting each test point, no short circuit was found, so we had to use the burning machine method.

yx
2023-04-19

Smartphone & Pad Repair Guide

After Apple Tablet iPad 2018 fell, the black screen did not turn on for repair.

After Apple's flat-panel iPad 2018 fell, the black screen didn't turn on. I immediately thought that the screen might be broken, or the motherboard was broken and the components were soldered. In this case, we must first rule out the screen problem.

zll
2023-04-19

Laptop Repair Guide

Lenovo E460 Notebook Boot Dark Screen repair

Lenovo E460 Notebook Boot Dark Screen repair Check that the backlight source is EC119 pin, and there is no broken line or short circuit, and the resistance value is about 566. Find a 3.3V forced pull-up directly on the motherboard,…

yx
2023-04-18

Smartphone & Pad Repair Guide

Huawei Enjoy 10 shows that there is no service and no network maintenance can be found

Huawei Enjoy 10 shows that there is no service and no network maintenance can be found. Machine model: Huawei Enjoy 10 Fault symptom: the mobile phone shows no service. Maintenance process: Turn on the phone, Huawei enjoys 10 shows no…

zll
2023-04-18

Laptop Repair Guide

Apple A1502 notebook screen does not show repair

Apple A1502 notebook screen does not show repair Machine model: Apple A1502 Fault phenomenon: the notebook screen does not display, and the screen is dark. Maintenance process: The machine has the sound of Apple’s boot, and the screen is not…

yx
2023-04-14

Smartphone & Pad Repair Guide

The volume of Xiaomi 8 cannot be adjusted for repair

After getting the mobile phone, start the test, press and hold the volume up button and there is no response, and the sound level has not changed. Press and hold the volume down button, and the sound of the mobile phone will be reduced. Take out the motherboard after disassembling, and measure the grounding value as OL, indicating that the motherboard is disconnected.

zll
2023-04-14

Laptop Repair Guide

Lenovo Z485 notebook trigger current 0.028 repair

Lenovo Z485 notebook trigger current 0.028 repair Machine model: Lenovo Z485 notebook Main board number: DALZ2CMB8E0 Lenovo Z485 Notebook Trigger Current 0.028 Maintenance Figure 1 Fault phenomenon: the trigger current of notebook is 0.028. 、 Lenovo Z485 Notebook Trigger Current…

yx
2023-04-13