Lenovo Z580 laptop could not boot, and the test was found to be caused by EC damage, and after replacing the problem.
MacBook A1466 notebook fan kept running, which was caused by corrode at the bottom of J4800 connector. The problem was fixed after replacement.
The usb interface of ASUS X455LD notebook computer doesn't respond.Jump wire borrows other USB signal channels, and the USB interface is normal.
Lenovo Y400 notebook didn't respond when it was turned on. After replacing the 5V upper and lower tubes, it turned on normally.
water damage Apple MacBook Pro A2338 computer turned on with a dark screen. Replace corrode resistor, and the computer turned on normally.
Haier mechanic t90-t notebook no booting, replaced Nanqiao chip, boot normal.
Lenovo ThinkPad L450 notebook can't be charged. The battery is working properly. Replace Current protection isolation tube for repair.
Apple Macbook Pro screen is abnormal,Blurred screen is displayed, the graphics card door is replaced by GPU, and Repeat welding video memory is repaired.
Apple MacBook Pro A2338 notebook M1 chipset water damage,corrode seriously caused computer no booting, replaced chip Jump wire to repair.