Screen looses touch accuracy

The touchscreeen must be replaced. Over time, they can drift beyond the ability to recalibrate it. If you want to try and recalibrate it, here is the procedure.
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If you find that the unit will not recalibrate, then you must replace the touchscreen. More info on that is here:

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Please see the calibration procedure here:

http://www.sharc.net/discus/messages/6/77.html?1286154637

Please note that if you have to keep recalibrating the touchscreen, then that means it is drifting and needs to be replaced. More info on that here:

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



- Jim
SHARCNET-USA

You have a faulty touch screen. you will have to get that replaced or repaired. It not letting you recalibrate is becuase the digitizer has a break in it.

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 touchscreen will now be recalibrated.

If your touchscreen is not responding to any touch and preventing you from recalibrating the touchscreen using the instructions above, please follow the steps below:

1. Connect your nuvi to your computer with a compatible USB cable.
2. Open the Garmin Nuvi drive located in MyComputer/Computer. (Note: Mac users can locate the Garmin Nuvi drive icon on the Desktop.)
3. Open the Garmin folder.
4. Locate and delete the GUPDATE.GCD file.1
5. Safely disconnect your nuvi from your computer.
6. Power the nuvi Off.
7. Power the nuvi on by holding the power button.
8. Continue holding the power button down for 1-2 minutes until the screen calibration option displays.
9. Touch the center of the dot as it moves around the screen.
10. When Calibration Complete appears on the screen, please touch OK.

The touchscreen will now be recalibrated and should respond properly.

You should check if a screen protection film is still on. If so remove it.

Next is to calibrate your screen following Garmin procedure
Turn off device.
Press top left corner of device an hold.
Turn on while holding pressure, once device starts, release start, but still hold the pressure for 10 seconds until a screen is appearing with "press dot"

Sounds like the touch screen may need calibration. Turn the unit off then turn it back on but hold the power button to the ON position for about a minute. The screen calibration should come up. If this does not work you may have another problem with the touch screen.

Cheers
Jesse

Try recalibrating the touch screen. Devices with touch screens need to be recalibrated in order to respond properly. The greater the use, the more often recalibration is necessary. I recalibrate my phone once a week. I hope this helps.

i think you should either get a new ds or tap the touch screen hard. if tapping the touch sreen harder does not work then that means it is time for a new ds.

Hi penny_od.....The following excerpts has been extracted from the Nintendo Help Site. If you would like to view the entire document, please click on the URL below....Please update your post of any progress, whether positive or negative so that I may learn from this too.....good luck my friend. http://www.nintendo.com/consumer/systems/ds/trouble_screen.jsp#touch ============================================= Touch Screen doesn't respond or is inaccurate when touched * Be sure that you're using only the bottom screen of the Nintendo DS with the stylus. The upper screen is not a touch screen. * Use only licensed Nintendo DS styluses and screen protectors. * Unlicensed screen protectors can lower the sensitivity of the touch screen. If the problem you are experiencing started happening after you attached a screen protector, you may want to remove it. Please note that some screen protectors can leave behind a residue that may be difficult to clean. If you are planning on removing a screen protector that has been placed on your Nintendo DS, click here for tips on cleaning your screens. * If the touch screen is not responding when touched, or the accuracy of the screen is off, you may need to recalibrate the touch screen. Click here for help recalibrating the Touch Screen. * If recalibrating the screen didn't solve the problem (see above step), hold the Nintendo DS at an angle so that you can see where the edges of the Touch Screen meet the housing of the system. Look around the entire edge of the Touch Screen for any foreign material (such as crumbs, etc.) that may be wedged in between the Touch Screen and the housing of the DS. Foreign material in this area can cause the Touch Screen to work incorrectly. If there are any visible particles, please follow these steps for cleaning the screen. If the above steps do not solve the problem, your system will need to be repaired. Click here for repair information.

We've put together some useful tips on calibrating your MobilePro * When calibrating your touch screen be sure to use the same amount of pressure that you apply during normal use. In general, the lighter the better. This allows the screen to recognize taps consistently. * When calibrating your touch screen hold the stylus over the calibration point until it moves to the next point. Holding it for this period will lead to greater accuracy than just tapping the spot quickly. * When calibrating your touch screen support the screen from the back with your other hand. Try not to grasp the screen from the side with your thumb on the front. * When calibrating your touch screen do not let anything other that the stylus accidentally touch the screen. For example, don't rest part of your hand on the screen to help steady the stylus. * Once you've completed the stylus calibration, be sure to perform the double tap calibration as well. This will ensure greater accuracy.