Here’s the Nokia 3720c solution for display backlight LED not working problem and shows a dark or black screen display. The solution below shows the connection line paths and certain components that holds for the LCD backlight LED to work.
Just refer to the solution below, this may help in solving backlight white LED problem on Nokia 3720 classic after you confirmed that the LCD screen is okay or already tried replacing it.
Nokia 3720 classic Display Light Jumper Ways
After already confirmed that the LCD is working, or already tried replacing it but still it shows a dark screen display and the backlight LED is not working, you may then check the highlighted components above. You may start cleaning the LCD pin connector, re-solder it if necessary.
Please note that although every diagram or solution posted on our website has been tested by one or more members of our team before posting,so we will not be responsible for any loss or damage, including personal injury.Use this repair solutions at your own risk.
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