If your Oppo A53 phone is experiencing one of the symptoms as described above, there are several repair steps that can be taken to fix the damage.
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 display line and socket
Oppo A53 without backlight of the phone can be damaged by liquid entering the phone. And damage the transmission line and 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 rails and sockets and impact the fault line. Therefore, for the repair steps immediately clean up corrosion and rust, if there is a broken path immediately repair by line jumping 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 Le Khuyen Mobile provides can be a guide for you in trying to repair a damaged backlight.
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| OPPO A53 Backlight Problem |
Measure on each component, if there is a defective component, 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.