I have the same problem described above with my Garmin nuvi 650, the touchscreen is not responding anywhere I touch.
Powering on shows my wallpaper screen, then loads the "warning" screen with the "agree" button - touching that does nothing. Eventually the warning screen times out and it goes to the "where to / view map / travel kit" screen - again, touching does nothing. If I tap the power button it goes to the quick settings screen for volume and brightness settings, where again touching the screen does nothing. In the bottom right of that screen is a red button that says "Lock."
I've powered on and off (several times), tried the hard reset button on the unit (a couple of times), and even re-installed the latest firmware with the Garmin WebUpdater tool, and the problem remains.
There are three levels of fixes, please try them in order:
1. Reset the GPS using the Reset button, on the back, just under the Antenna Hinge. Resetting will turn off the GPS, and then turn it back on, if connected to power. Test, if fixed, great, otherwise, go to fix 2.
2. Turn the power off, then press and hold the powerbutton for up to 2 minutes. The GPS will turn on, and display a "PreBoot Mode" message. When that message disappears, and the screen calibration screen appears, follow the on-screen instructions, and you are fixed. If you still cannot use the touch screen, repeat fixes 1 and 2 several times, just to be sure., then go to fix 3
3. The touch-screen glass has probably broken or lost its connection with the GPX motherboard. You can order new touch screen glass on the web and install yourself, if you are techy in nature, otherwise do a search for "garmin nuvi 660 repair" and choose your service.
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You have not said what model garmin nuvi ?
The touchscreen on a Garmin nuvi GPS usually loses
sensitivity or stops responding if it's lost calibration.
This usually happens after prolonged usage.
Touchscreen problems are also caused by dirt, smudges and
If your Garmin nuvi's screen isn't performing as expected,
Garmin provides solutions and tips to not only improve the device's
performance, but prevent premature wear and tear. Calibrating the Screen
If the Garmin nuvi's touchscreen isn't working, you need
to calibrate the screen.
Calibration resets and repositions the screen for optimal
performance without deleting saved settings.
Before calibrating the screen, press and hold the
"Power" button to turn off the device.
Pressing and holding the "Power" button again for
about 30 seconds automatically displays the calibration screen.
Pressing the dot on the white screen calibrates the
If The Garmin nuvi's touchscreen is still unresponsive,
updating the device's firmware to the latest version can solve operating system
problems that lead to touchscreen problems.
Before updating the device's firmware, connect the GPS to
the computer using the USB cable. When the computer detects the GPS, the
"AutoPlay" menu appears on the screen.
Tapping the arrow on the menu automatically opens the
"myGarmin Agent" download page.
From there, follow the prompts to update your Garmin nuvi's
software quickly and safely.
In some cases, the Garmin nuvi's touchscreen won't respond
to touch if the screen is dirty. Touchscreens are sensitive to dirt and smudges
that decrease sensitivity.
If the screen is dirty, cleaning it with a soft, clean,
lint-free cloth improves performance.
If the screen is severely dirty, using water, isopropyl
alcohol or eyeglass cleaner removes tough stains.
To avoid damaging the screen, apply liquid to a cloth
instead of directly to the touchscreen before cleaning it.
Refer to your Garmin nuvi's maintenance and storage
information found on the device's manual prevents premature wear and tear.
If the screen stopped working after prolonged exposure to
extreme temperatures or water, the device's hardware is most likely damaged.
In such a case, you need to contact Garmin for additional
troubleshooting and possible repairs.
Attempting to disassemble and repair the GPS
yourself only increases the risk of damaging the unit even further. also it could be a battery problem if the nuvi is not getting power ?
You should not be having to constantly reset the Nuvi to make the touchscreen operational. The touchscreen is defective and needs to be replaced. I've replaced over a thousand 660 touchscreens and through my experience, a non-responsive touchscreen is caused by a defective touchscreen.
This is Garmin's response to me after having the same problem on a 2 year old Nuvi 650:We are no longer replacing or repairing this model unit. However, let me give you some steps to try to calibrate the screen of your unit. The following 'Fix' did not work. I won't be buying another Garmin. To recalibrate the touchscreen on your nuvi 600 series device please follow the steps below:
Plug the device into the computer via USB data cable
Double click My Computer (Mac Users can skip this step)
Double Click the Garmin or nuvi drive
Double click the Garmin folder
Delete the GUPDATE.GCD file (if this file is not on the device please skip to the next step)
Unplug the GPS device from the computer
Power the device off
Press and hold the Power button
After a short period a screen should appear that says Touch Dot
Release the Power button
Touch the dots as they move around the screen.
Your touchscreen should now be recalibrated.
If the screen is still not responding, then the unit will need to be replaced with a new unit at this time.
With Best Regards,
Product Support Specialist
913-440-8280 (fax) Att: Benjamin B, Associate #6891
You may need a new touchscreen, but to make sure it is not a software problem, do this: The software on your gps system may be corrupted and unreadable. You will need to update it/re-install the software on it. To do that, you can download this software which will automatically search for the latest updates: http://www.tomtom.com/services/service.php?id=16&tab=87 If that does not work, you need to get the touchscreen to be replaced.