Is the Garmin 4210 Obsolete?

Disconnect it, power off and plug it into the computer again.

Or, if you aren't in the middle on an update, reset it. Some have a red button on the back.

Google

make model reset

All the manuals are online.

Take you GPS to a repair service and get recalibrated or repaired the touch-screen. Or do it yourself?
https://support.garmin.com/support/searchSupport/case.faces?caseId={31446910-c3a3-11e4-cd20-000000000000}

Garmin Nuvi LCD Screen Removal Replacement Pt 7 Garmin Nuvi 2460 LCD Screen Replacement Disassembly instructions

have cracked Gps screen where can find replacement screen

Garmin digitizer replacement GPS


Look for more tips with Google: searching for

REPAIR TOUCHSCREEN GARMIN

Garmin Nuvi LCD Screen Removal Replacement Pt 7

There may be something wrong with the screen. I would suggest either buying a new screen and replacing it yourself or having a professional install a new screen.

DIY

http://cgi.ebay.com/GARMIN-NUVI-Nuvi-750-780-LCD-Screen-Display-Digitizer-/320549764373?pt=PDA_Accessories&hash=item4aa2413d15

Professional

http://www.fixmygarmin.com/garminrepair_details.php?pid=678

It almost makes more sense to simply purchase a new model.

To calibrate the touchscreen on a nuvi 300 or 600 series:

1. Power the unit On.

2. From the Where to? / View map screen, touch Settings (wrench icon).

3. Touch Display.

4. Touch Recalibrate.

5. A new screen will display that says Press Dot.

6. Touch the center of the dot.

7. Keep touching the center of the dot as it moves around the screen.

8. When Calibration Complete appears on the screen, please touch OK.

The touch-screen will now be recalibrated.

If the Touch Sceen is not responding properly, calibrate the touch screen.. Turn the Nuvi off then back on Slide Power key to the right (lock) Hold your finger on the secrren for 30 seconds until the calibration screen appears Follow the on-screen instructions

there is probably the problem of your garmin touch screen,you need to try to replace a new touch screen.
If you want to replace it,you can try to contact
msn/email:[email protected]
probably she will give you good solution.
good luck

not worth it, as the cost will exceed the unit value as the 310 series is obsolete, get a new one on ebay

I would try using duct tape to hold down the base.

hold down the power button when you turn it on until the calabaration screen comes up and that might fix your problem