Touch screen has no display on our ACONT900 Series

If you are running windows, either open the control panel and select "display" or right-click (try touching also) on a blank area on your desktop. select "screen resolution" and try to change it there. Only the supported display modes should appear.

Since you are running a touch screen display, there are probably only a few options you can choose. This is due to the nature of how a touch screen operates.

Hope this helps.....

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.

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.

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.

Your touch display is shorting out....BAD
Replace Unit
BUT try this first:
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1. Have the unit turned OFF and unplugged from power.
2. Slide the power switch to the ON position and hold for about 45 seconds.
3. A message will display on the screen: Press Dot.
4. Once this message displays, release the Power button.
5. Press in the center of the Dot.
6. Keep pressing in the center of the Dot as it moves around the screen.
7. Once this is complete, there will be a message: Calibration Complete.
8. Touch Ok and the unit will restart.

The touchscreen will now be recalibrated.
*Note if unit is running software version 6.00 or newer you will want to follow steps from below.
To recalibrate the touchscreen on your nuvi 205 series follow the steps below:

1. Have the unit turned OFF and unplugged from power.
2. Place your finger in the top left hand corner of the touch screen and apply pressure.
3. Slide the power switch to the ON position.
4. Hold pressure in left corner until the Press dot message appears.
5. Once this message displays, remove your finger from the screen.
6. Press in the center of the Dot.
7. Keep pressing in the center of the Dot as it moves around the screen.
8. Once this is complete, there will be a message: Calibration Complete.
9. Touch Ok and the unit will restart.

The touchscreen will now be recalibrated.

Does this help? Let me know. Thank you...

First make sure the batteries are good and at normal room temperature.
Second, based on your question your touch screen is bad or needs calibrating....
Then
Try to recalibrate your screen:
Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} To recalibrate the touchscreen on your nuvi 200 series follow the steps below:

1. Have the unit turned OFF and unplugged from power.
2. Slide the power switch to the ON position and hold for about 45 seconds.
3. A message will display on the screen: Press Dot.
4. Once this message displays, release the Power button.
5. Press in the center of the Dot.
6. Keep pressing in the center of the Dot as it moves around the screen.
7. Once this is complete, there will be a message: Calibration Complete.
8. Touch Ok and the unit will restart.

The touchscreen will now be recalibrated.
*Note if unit is running software version 6.00 or newer you will want to follow steps from below.
To recalibrate the touchscreen on your nuvi 205 series follow the steps below:

1. Have the unit turned OFF and unplugged from power.
2. Place your finger in the top left hand corner of the touch screen and apply pressure.
3. Slide the power switch to the ON position.
4. Hold pressure in left corner until the Press dot message appears.
5. Once this message displays, remove your finger from the screen.
6. Press in the center of the Dot.
7. Keep pressing in the center of the Dot as it moves around the screen.
8. Once this is complete, there will be a message: Calibration Complete.
9. Touch Ok and the unit will restart.

The touchscreen will now be recalibrated.

i think it is an internal problem and it usually appears if the cabinet touches your screen.So go to nokia shop and try to solve it

I'll start with a comment I made on another post:

The touch screen is made up of several layers. A thin plastic layer, a micro thin metal layer, microdots for insulators, another ultra thin metal layer, and a final plastic layer. All of these layers amount to the thickness of a sheet of paper. This whole stack is bonded to a thin sheet of glass and placed over the actual TFT display.

It's amazing that you can see through all these layers and only lose 20% of the light. What's not so amazing is that those thin metal layers are prone to damage. I've seen several with no apparent damage that didn't work, and several with visible scratches that worked fine.

I usually start by installing (or reinstalling) v7.2 firmware and then attempt to recalibrate the screen, sometimes that works. Next I would try re-seating the 4 conductor touch screen pigtail in it's ZIF socket nestled between the big white wires on the display assembly. The last resort is to buy a broken 2600 or 2700 series Garmin and salvage the touch screen. Actually the real last resort is to have Garmin fix it for a flat $250. Good luck.

DO NOT breathe or move ur thumb/stylus after a few seconds it'll work
took me a while 2 figure out that it knows if u move or breathe

Have you dropped the DS? It could be that the ribbon cable on the bottom LCD has come adrift.
Does the top screen display the Nintendo logo when switched on?