Bought the A1 as birthday present for my 8 year old daughter. She has been using it non-stop until the battery dies. While charging, she got impatient and turned it on, then the screen stopped responding to any touch. Turning it off by holding the power button, then turning it back on didn't help. I called lenovo tech support, told me the same, turn it off by holding power button for 10 seconds, then power on, waisted 2 hours, they wanted me to ship it back to have it fixed, then shipped back to me ! I said, no way, this is her birthday present, so tech support guy suggested I call sales and have it refunded. This morning I decided to try something, after powering it off by holding power button for 10 seconds, I pressed the volume + button and power button simultaneously, it powered up into some restore screen, there are a few menu options, i.e. restore to factory settings, the last was recalibrate touch, I used the volume buttons to scroll through the menu, then used the power button to "select" the recalibrate option, it said don't touch the screen, took a few seconds and powered off. I pressed the power button until you feel the gsensor, then let go, tablet powered up and the screen is working again ! Hope this helps anyone else having this issue.