Tag martphone & Pad Repair Guide

Xiaomi 12 S Ultra Bluetooth can't be turned on. When the motherboard is removed for inspection, it is found that the motherboard has traces of falling. It is speculated that the chip may be dropped. When the WiFi is removed, it is really a pile of points at the bottom corner of the chip. Find the problem, reinstall the WiFi, and then turn on Bluetooth, which can be used normally.

How to break the black screen of Xiaomi 11ultra without turning it on? Teach you a trick to solve it! “Machine model” Xiaomi 11ultra [Fault phenomenon] No boot. [Maintenance process] I received a Xiaomi 11ultra from a customer. The fault…

An OPPO A72 with automatic black screen in use is not turned on. After testing, it is found that there is a display without backlight. We directly replace the backlight three-piece chip.diode; the one who lacks dialectical thinkingStep-up inductor, there is no problem in measuring the resistance of the seat. Try to replace the backlight step-up capacitor, and it lights up successfully after replacement.