Touchscreen not responding - Garmin nuvi 255W GPS Receiver

Two thing can cause this. If your unit is running firmware version 5.3, this version has a bug where the touchscreen will work for about 5 seconds then the unit will lock up. Updating the unit to version to version 5.4 will fix the problem. More info can be found here:

http://www.sharc.net/discus/messages/6/471.html?1337567850

http://www.sharc.net/discus/messages/6/469.html?1333569932

If you are running firmware version 4.9 or 5.4 and the touchscreen still does not respond, then the touchscreen will need to be replaced. On the Nuvi 7xx, the touchscreen may be soldered to the LCD display, so if you don't have any soldering experience, please have a professional replace the touchscreen. More info can be found here:

http://www.sharc.net/gps_LCD_repair.htm

Sounds like it didn't install correctly, you may want to check the digitizer on the glass panel

CHECK THE FLEX OF UR TOUCHSCREEN IF ITS BROKEN;IF NOT JUST LIFT THE SOCKET AND PLACE IT AGAIN.

Take it to the repair shop.

You need to replace the part called the 'digitizer'

You can probably get them on ebay.

CommCentral

check MENU settings may be touchscreen is off ,else touchscreen loop is broken

You may not see the damage but, it might have been damaged somehow. Take it to phone shop to be examined. Thanks

Try going into settings and go back to factory default,See if that resets your phone (but make sure you back up your contacts just in case you lose them.

Try to find how to calibrate the touch screen in the users manual.

Try running a piece of paper around the edge of the screen. There may be was something stuck in there, pressing the screen slightly and causing it to not respond to the stylus