Home » » Nokia X3-02 Touch screen problem hardware solution

Nokia X3-02 Touch screen problem hardware solution

Hints on troubleshooting touch screen failure on Nokia X3-02:
This will work if you already tried replacing the touch screen module and restoring the device firmware.
1.Check/clean the touch screen pin connector, re-solder it if necessary.
2. Check/read the touch screen supply voltage (VIO 1.8V) across to the filter coil.
If the voltage is missing check/replace the 0 ohms resistor, or apply a jumper if the line paths is open or cut.
3. Trace the RESET and PINT DAV line paths. apply a jumper if connection is open or cut.
4. Rework, re-ball or replace the Touch Controller chip.

0 comments:

Post a Comment