I have a nuvi 680 garmin and will have charge but and will restart but once it hits the disclaimer of accepting. It is not able to function by touch to accept conditions.

here is a link to change the battery whick is also how to remove the screws to open unit....

http://www.youtube.com/watch?v=4pbOknpt2Qo

Yes, please see this link:


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

- Jim

Hello :

It's a common software problem with your device . To correct the problem I recommend you to reset it .

Here is how to reset your device :

1:Turn the Nuvi on.

2:Touch the tools icon on the main screen. The tools icon is represented by a wrench surrounded by a blue circle.


3:Touch the "Settings" icon which appears as a wrench.

4:Push the "Restore" button at the bottom of the screen. A confirmation message will appear asking to confirm restoring the Nuvi to factory settings. Push yes to restore the factory settings
............................................................................................
Try this for hard reset .

Turn off Garmin device. Press down on bottom right corner of the touchscreen [ Don't let go ] , and then power on the GPS unit. You should be prompted whether do you really want to erase all user data, or asked if do you really want to start up in maintenance mode. Press “Yes” to reset (warning: all data will be erased and lost, so backup before proceeding) or enter maintenance mode.

PLEASE DON'T FORGET TO RATE !

Please see this link:

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


- Jim

The cable to the touch sensitive part of the screen may have come loose (easily happens if knocked).

Try taking the unit apart (with care and the right type of screwdriver) and reseating the connector cable.

Once you've done this you may need to recalibrate the screen. Holding the power switch down will get you to the reboot / recalibrate screen.

But of course this will probably invalidate your warranty so beware.

The touchscreen needs to be replaced. Please see this link which explains why this happens:

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


- Jim

Recalibration has nothing to do with repairing this problem. If the touchscreen is non-responsive, how are you going to recalibrate it when it doesn't recognize the key presses?

The problem is caused by a defective touchscreen. SHARP substitued a different touchscreen into the 6xx series that fails even when the glass isn't damaged. The problem is caused by a defect in the manufacturing process where the touchscreen connections becomes detached from the tail that plugs into the board.

The touchscreen connections between the screen and the tail are made from conductive ink that can fracture, most likely caused when pressing on the screen over time.

These defective screens can be identified by a white tail cap at the end of the tail, whereas the original touchscreens have a maroon tail cap. The original touchscreens will only fail if the glass has been broken.

I only use the original touchscreens for all of my repairs.

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

- Jim

Try to calibrate the touch screen .

If not send it to a repair centre they will fix the touch screen for you.

Try here www.satnavrepairservice.com

Regards

I have a similar issue, it does not even power on even connected to ac adapter.

Needed to change the fuse