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.
2. Check the display line and socket
Samsung Galaxy A12 A127F backlight and screen issues
- White screen
- Not displayed
- Low light on screen
- No backlight
How to repair Samsung Galaxy A12 A127F backlight
If your Samsung Galaxy A12 A127F phone is experiencing one of the symptoms described above, there are several repair steps that can be taken to fix the damage.
1. Samsung Galaxy A12 . 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.
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| Samsung Galaxy A12 A127F Backlight Problem |
2. Check the display line and socket
Samsung Galaxy A12 A127F has no backlight due to liquid entering the phone and damaging the display socket on the Motherboard. So to fix it, you should remove all parts of the phone to check. Normally, water will corrode and rust on the rails and sockets impacting 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 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 component, replace the component with the same type and value. Try to check the diode components 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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Samsung
