Xiaomi Poco M3 Backlight Problem

Xiaomi Poco M3 without backlight often has symptoms such as LCD screen not showing, LCD screen is white. Or in general, there is no light produced by the LCD screen, but ringing and notification sounds can still be heard.

Xiaomi Poco M3 . display light problem solution

1. Screen replacement

The first thing to do if encountering such damage is to try a new LCD Xiaomi Poco M3 replacement in good condition. This can be applied if your phone has broken or cracked screen due to a certain drop. By trying to replace the LCD screen with a new one, hopefully this damaged problem can be solved.

2. Check the line and connect the monitor

Xiaomi Poco M3 has no backlight due to liquid entering the phone. And damage the transmission line and display socket on the Motherboard. To fix it, you should remove all parts of the phone to do a check. Normally, water will corrode and rust on the line and impact the fault line. Therefore, for the repair step, immediately clean the corrosion and rust, if there is a broken path, immediately repair it by fishing method.

3. Check and replace internal components

If the condition of the LCD screen and transmission is good but suddenly there is damage to the backlight on your phone. Then it can definitely go wrong with the internal components. The schematic image that VietNamGSM provides can be a guide to you in trying to repair a damaged backlight.

 

Xiaomi Poco M3 Backlight Problem

Make measurements on each component, if any defective part, replace it with a component of the same type and value. Try to check the components of the diode as well as the coil marked on the schematic image. Often the component fails and leads to the appearance of a backlight display.