The Nokia 105 (RM-908) is a classic feature phone (2013 release) known for its durability, long battery life, and simplicity. Its keypad is not a standalone module but is integrated into the main PCB via carbon contact pads and a flexible membrane. The refer to the conductive traces, test points, and column/row matrix lines that connect the keypad buttons to the baseband processor (typically a Mediatek or Spreadtrum chipset, often a MT6250 or similar).
: The center point of the power button carries the GR (Ground Resistance) value. If this track is broken, you can jump it directly from the power section components on the PCB. nokia 105 rm 908 keypad ways
Set your multimeter to Buzzer/Continuity mode . Test from the center point of a non-working key to the center point of another key in the same row/column to see if the track is continuous. Common Jumper Solutions: The Nokia 105 (RM-908) is a classic feature
If the hardware is intact but the phone is unresponsive or locked, specific keypad codes are used for maintenance: : The center point of the power button
: The default factory security code for the Nokia 105 is 12345 .
