Nokia 105 Rm 908 Keypad Ways May 2026

Technicians should use a multimeter in continuity mode to trace connections. If a track is broken, use insulated jumper wire (0.10mm) to bridge the gap.

| Key | Connection Point A | Connection Point B | | :--- | :--- | :--- | | Call (Green) | Row 1 | Col 1 | | End (Red) | Row 5 | Col 1 | | D-Pad Up | Row 1 | Col 2 | | D-Pad Down | Row 2 | Col 2 | | D-Pad Left | Row 3 | Col 2 | | D-Pad Right | Row 4 | Col 2 | | D-Pad Center | Row 5 | Col 2 | | Soft Keys (L/R) | Row 1/2 | Col 3 | | Digit 1 | Row 1 | Col 4 | | Digit 2 | Row 1 | Col 5 | | Digit 3 | Row 1 | Col 6 | | Digit 4 | Row 2 | Col 4 | | ... | ... | ... |

(Note: Exact column/row assignments may vary slightly by PCB revision; always verify with a schematic diagram if available). nokia 105 rm 908 keypad ways

Place the PCB under a microscope or magnifying glass. Look for:

A: Your jumper wire is too long and acting as an antenna, or you have a cold solder joint causing intermittent connection. Re-solder with less wire length and more flux. Technicians should use a multimeter in continuity mode

Tools needed:

Steps:

Example:

Before opening the phone, verify these symptoms: Tools needed:

Often, the trace breaks between the keypad contact and the protective filter.

(Adjust after actual mapping.)