Why does LCD screen not respond to touch

Fix an Unresponsive Ipod Screen
Many of today's electronic devices including cell phones, music players and portable game systems have a touch screen.
When a touch screen fails, it does not respond when you tap it with your finger or a stylus.
This can happen due to several reasons, such as a screen protector, dust or improper calibration.
You can often fix an unresponsive touch screen by cleaning it or resetting the device.
Remove the plastic touch screen protector sheet.
Some protector sheets are too thick and prevent the touch screen from responding to your touch. If you must use a protector screen, only use one that is licensed for your specific device.
Wipe the screen with a soft microfiber cloth.
Clean off any dirt, dust or fingerprints on the screen.

Dry your hands thoroughly.
The touch screen will not respond if your hands are wet.
Reset the device.
If your device does not have a "Reset" button, remove the battery, memory card or SIM card, then reinstall them.

Delete any third-party applications you recently installed.
Some third-party applications can cause your device to lock up or freeze.

Recalibrate the touch screen.
Look in the device's Settings menu for a calibration option and follow the prompts.


http://support.apple.com/kb/ts2771
iPod touch: Hardware troubleshooting
If this fails to fix the problem
Press the "On/Off-Sleep/Wake" button and hold it for a few seconds, until a red slider appears. Press the "Home" button until the frozen app quits.
If this doesn't work, you can try restarting the iPod touch.
Press the "On/Off-Sleep/Wake" button if you need to restart the iPod touch, and hold it until the red slider appears on the screen.
Slide your finger over the slider to turn off the device.
Press the "On/Off-Sleep/Wake" button and hold it until the iPod touch turns back on.
If you can't turn off the iPod touch, you can try resetting it.
Press the "On/Off-Sleep/Wake" button while simultaneously pressing the "Home" button when you want to reset the iPod touch, and continue to hold the buttons for at least 10 seconds, until the screen goes black and the Apple logo appears.

You can try calibrating the stylus pen. Hope this works :) Here are step by step instructions straight from the Leapster2 website:

If your Leapster2 does not respond to the stylus pen, it needs to be calibrated. Calibrating the Leapster2 is easy:

1) Ensure that a game cartridge is not inserted in the Leapster2

2) Hold down the Hint (?) button while turning the unit on. Continue to hold the Hint button down until the LEAPSTER2 menu appears. Remember that you need to hold the "Hint" button down the whole time while you are pressing the power button, and releasing it.




3) The LEAPSTER2 menu will show the options Base Info, Cart1 Info, Cart2 Info, Cart3 Info, and Touch Calib. If you do not see this menu after powering on the Leapster2, turn the Leapster2 off and repeat steps 1 & 2 until you see the menu.






4) When the LEAPSTER2 menu screen appears, press the A button on your handheld.

5) Using the stylus pen, touch each of the crosshairs that appear

6) Restart unit

Hello,

I had the same problem and here is the answer I found at leapfrog.com.

If your Leapster2 has this kind of problem, it needs to be calibrated.

Calibrating the Leapster2 is easy:

1) Ensure that a cartridge is not inserted

2) Hold down the Hint (?) button while turning the unit on. Continue to hold the Hint button down until the LEAPSTER menu appears.

3) When the LEAPSTER menu screen appears, press the A button

4) Touch each of the crosshairs that appear with the stylus

5) Restart unit

You can also visit the website for more information.

Good luck!

I had the same problem. I tried to clean it, brush out crumbs, gently "bleed" it and so on until I saw Quebol96's answer to the same problem: www.fixya.com/support/t3077478-leapster_will_not_recognize_pen_first

Quebol96's solution worked perfectly!

From Quebol96:
Answer If your Leapster2 does not respond to the stylus pen, it needs to be calibrated. Calibrating the Leapster2 is easy:
1) Ensure that a cartridge is not inserted 2) Hold down the Hint (?) button while turning the unit on. Continue to hold the Hint button down until the LEAPSTER menu appears. 3) When the LEAPSTER menu screen appears, press the A button 4) Touch each of the crosshairs that appear with the stylus 5) Restart unit

Answer
I had the same problem and here is the answer I found at leapfrog.com which fixed my daughter’s disney princess leapster 2’s problem. Good luck!
If your Leapster2 does not respond to the stylus pen, it needs to be calibrated. Calibrating the Leapster2 is easy:
1) Ensure that a cartridge is not inserted
2) Hold down the Hint (?) button while turning the unit on. Continue to hold the Hint button down until the LEAPSTER menu appears.
3) When the LEAPSTER menu screen appears, press the A button
4) Touch each of the crosshairs that appear with the stylus
5) Restart unit

Answer
I had the same problem and here is the answer I found at leapfrog.com which fixed my daughter’s disney princess leapster 2’s problem. Good luck!
If your Leapster2 does not respond to the stylus pen, it needs to be calibrated. Calibrating the Leapster2 is easy:
1) Ensure that a cartridge is not inserted
2) Hold down the Hint (?) button while turning the unit on. Continue to hold the Hint button down until the LEAPSTER menu appears.
3) When the LEAPSTER menu screen appears, press the A button
4) Touch each of the crosshairs that appear with the stylus
5) Restart unit

If your Leapster2 does not respond to the stylus pen, it needs to be calibrated. Calibrating the Leapster2 is easy:
1) Ensure that a cartridge is not inserted 2) Hold down the Hint (?) button while turning the unit on. Continue to hold the Hint button down until the LEAPSTER menu appears. 3) When the LEAPSTER menu screen appears, press the A button 4) Touch each of the crosshairs that appear with the stylus 5) Restart unit

Answer
I had the same problem and here is the answer I found at leapfrog.com which fixed my daughter’s disney princess leapster 2’s problem. Good luck!
If your Leapster2 does not respond to the stylus pen, it needs to be calibrated. Calibrating the Leapster2 is easy:
1) Ensure that a cartridge is not inserted
2) Hold down the Hint (?) button while turning the unit on. Continue to hold the Hint button down until the LEAPSTER menu appears.
3) When the LEAPSTER menu screen appears, press the A button
4) Touch each of the crosshairs that appear with the stylus
5) Restart unit

If your Leapster2 does not respond to the stylus pen, it needs to be calibrated. Calibrating the Leapster2 is easy:
1) Ensure that a cartridge is not inserted 2) Hold down the Hint button while turning the unit on 3) When the LEAPSTER menu screen appears, press the A button 4) Touch each of the crosshairs that appear with the stylus 5) Restart unit

1) Ensure that a cartridge is not inserted 2) Hold down the Hint (?) button while turning the unit on. Continue to hold the Hint button down until the LEAPSTER menu appears. 3) When the LEAPSTER menu screen appears, press the A button 4) Touch each of the crosshairs that appear with the stylus 5) Restart unit