If you're facing hardware-related light issues on your Vivo Y17s, like dim backlight or no display light, it could be related to several hardware components. Below are some general hardware solutions for backlight or display light issues:
1. Check the Display
- Ensure that the display (LCD/LED panel) is not physically damaged.
- Replace the display with a working one to check if the issue is display-related.
2. Backlight /Boost Coil Coil
- The backlight coil might be faulty. If you can access the motherboard, check if the coil is damaged or loose.
- Use a multimeter to measure the coil's voltage. If no voltage is detected, replace the coil.
3. Backlight IC (Integrated Circuit)
- The backlight IC regulates the light output for the screen. A faulty IC can cause issues with the display brightness.
- If identified as faulty, this component needs to be replaced.
4. Fuse and Diodes
- The backlight circuit often has fuses and diodes that can fail. If the fuse for the display light is blown, it will stop the light from working.
- Check for continuity using a multimeter and replace any blown fuses or faulty diodes.
5. Connector Pins
- Inspect the display connector for corrosion, dust, or bent pins. Clean the connector using isopropyl alcohol and make sure all the pins are in good shape.
6. Battery and Power Supply
- Ensure the phone battery is functioning correctly. A weak or damaged battery might fail to supply enough power to the backlight.
- Measure the battery voltage and replace it if necessary.
7. Software Issues
- Sometimes, light problems can be caused by software bugs or configuration issues. Before diving deep into hardware repairs, try to perform a factory reset or software update to rule out software-related issues.
If you're not experienced with phone hardware repairs, it's a good idea to seek help from a professional technician to avoid damaging your device further.