Xiaomi Poco M3 Backlight Ways

In this article, we will provide solutions to fix Xiaomi Poco M3 lost screen light, low screen light... If you face display problems on phone screen or lights on screen is not working properly, you can try to replace it with LCD in good condition.

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

To fix the Xiaomi Poco M3 backlight problem, you can try to replace or install a new Display module first, to easily confirm whether the LCD backlight is still working or not. broken.

You can also test the LEDs using a multimeter if you can manage without messing up the LCD's connection.

If the newly installed LCD is still showing the same problem and the LED is not lit, refer to the solution below and locate the components marked on the PCB board.

If your Xiaomi Poco M3 phone has one of the symptoms described above. There are several repair steps you can take to fix the damage.

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 Ways

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.