This solution below shows the Nokia 105 RM-1133 LCD display backlight components that holds and control for the LCD screen display backlight to glow. If one of these components may become faulty due to wet or water damaged it will result to LCD’s backlight failure.
You may need to trace the connection line tracks, supply voltages and check some of the backlight LED driver components shown on the solution above. You may start to check the highlighted components for it is more prone to be easily damaged when a short circuit occurred. Check and replace if already found damaged.
Solution for Nokia 112 Not working LCD display backlight LED White Display Problem
Here’s some hints on how to troubleshoot the “Nokia 105 RM-1133 LCD display backlight not working problem”.
” Note: ensure that the Lcd is okay or try replacing it before proceeding”
1. Check the LCD pin connector for possible damaged, resolder if necessary.
2. Trace each of the LED + (positive and LED – (negative connection line paths down to the resistors where it is being connected.
3. Check the connected resistor, replace if found damaged.
Check the pin connector assembly and ensure to clean it as well.
Check the display filter resistors including the LCD supply voltage and trace the connection tracks to the LCD pin connector. Replace the damaged resistor or mind to reconnect if there is an open line paths.
If you have further questions please don’t hesitate to leave a comment.
Note: Every repairing solution posted here is tested by at least one member of our team. Use the information available here at Your Own Risk. We are not responsible if any harm comes to your device during the repairing process.
Nokia 105 RM-1133 LCD Display Light IC Solution Jumper Problem Ways LCD Display Light Not Working
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