Dots appearing on the display screen - BenQ MP622 DLP Projector XGA 2000:1 Contrast 2700 Lumens 5.5LBS Projector

If you can select settings / Update & Security / Reset

To calibrate the StreetPilot c-Series touchscreen, follow these steps: Begin with the device turned off and unplugged from a power source Power the device on and continue to hold the power button for 1 minute Release the power button when the screen displays "Press Dot" Accurately touch the dots as they appear The dots will change location A stylus or pencil eraser may be used to accurately touch the dots Touch OK when the "Calibration Complete" appears The touchscreen is now calibrated.

Try a mild soapy warm water solution (not too much) - if the black dots appear to be being caused by the display screen, some pixels may be faulty which would require servicing of the camera or possible display replacement

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.

To calibrate 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 calibrate 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. Once unit powers on release the power button.
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.

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It needs to be calibrated
To calibrate the touchscreen on your nuvi 200W 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 calibrate 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.

Are you sure you pressed the correct location on your screen???
If so, you may need to calibrate the screen.
Do this:
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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.

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