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.
Measure on each component, if there is a defective component, immediately transfer it with the same type and value of components. 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.
Samsung Galaxy A03 A035F backlight and screen problems that you may encounter:
- White screen
- Not displayed
- Line on screen
- Low light on screen
- No backlight
If your Samsung Galaxy A03 A035F phone is experiencing one of the symptoms described above. After that, some repair steps can be taken that can correct 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 line and monitor connection
Samsung Galaxy A03 A035F cannot cause phone backlight damage due to 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. So for the repair step immediately clean up corrosion and rust, if there is a broken path immediately repair by line jump 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.
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| Samsung Galaxy A03 A035F Backlight Problem |
Measure on each component, if there is a defective component, immediately transfer it with the same type and value of components. 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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Samsung
