Below is the latest diagram to repair Redmi 8 lost screen light, screen light not working and display related problems in case you are about to fix a screen issue caused by users. wet damage or accidental drop.
The problem of failure without backlight usually has symptoms such as LCD screen no display, 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 Redmi 8" backlight problem solution
To fix the Redmi 8 screen dark problem, first try to replace the LCD Xiaomi Redmi 8 with a new one, to easily confirm if the LCD backlight LED is still working or has been damaged. You can also test the LED using a multimeter if you can use it without damaging 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.
Xiaomi Redmi 8 backlight and screen problems that you may encounter:
- White screen
- Not displayed
- Screen light is weak
- No backlight
If your Xiaomi Redmi 8 phone is experiencing one of the symptoms described above. There are a number of repair steps you can take that may correct the damage.
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| Xiaomi Redmi 8 Backlight Ways |
1. Screen replacement
The first thing to do if you encounter such damage is to try replacing the LCD unit with a new one 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 Redmi 8 does not have a backlight possibly 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 conduct a check. Normally, water will corrode and rust on rails and sockets 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 in the internal components. The schematic image that VietNamGSM provides can be a guide to you in trying to repair a damaged backlight.
Measure on each component, if there is a 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 is damaged and leads to the appearance of a backlight display.
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Xiaomi
