Find the break in the line by following the color-coded paths on a schematic diagram.
If specific keys are not working, it is usually due to a break in the circuit tracks. Technicians use the following methods to troubleshoot: nokia 105 rm 908 keypad ways
If a track is broken, carefully scrape the protective mask off a working part of the line and solder a thin wire to the non-working pad. Nokia 105 RM-908 Keypad Ways: Complete Guide to