iPhone 7 mobile phone Stuck on Apple logo restarted, and after detection, it was found that the charge management chip U2101 was damaged, and the fault was repaired after replacement.
Lenovo X270 notebook Won't Turn On, after detection found to be caused by a resistor damage, re-welding on a fault repair.
The iPhone 8 Plus phone cannot be charged. It is found to be pp3v0_ It is caused by the short circuit of S2 power supply to the ground, and the fault shall be repaired after replacement.
DELL A961P laptop Won't Turn On, repair after replacing PU700 chip.
iPhone 6 Plus was started and Stuck on Apple logo was restarted. After detection, it was found that U5411_RF was damaged, and the fault was repaired after replacement.
DELL 5420/7420 series notebook computer Won't Turn On common failing, after testing, found that there was a broken line under BIOS.
iPhone 6s charging tips, please wait for Xt9811 to cool before use. After detection, it is found that the WiFi chip is damaged, and the fault can be repaired after replacement.
iPhone6 Plus can't be charged and WiFi can't be connected. Replace the USB chip. After PAD Jump wire patching, the two faults are perfectly repaired.
MacBook A1466 laptop Won't Turn On, which is found to be R1303 Open circuit after testing, can be directly short-circuit.
The rear camera of iPhone 7 plus doesn't work. This fault is caused by the poor control of the temperature when repairing WiFi and the faulty welding of small parts of sealing glue. It is repaired again and repaired perfectly.
