If the touch screen of your IT500 is unresponsive it is highly likely that there is Screen Control Lock Mode turned on.
- Identify if the Screen Lock is turned on. To do that check the upper-right corner of your screen and look for Padlock Icon as on example below:
- If the Padlock Icon is shown, to exit the Screen Lock Mode, please press and hold the Tick Button and the Return Button simultaneously for 2 seconds. (If you want to lock your screen follow the same step.)
- The Padlock Icon should disappear and now you should be able to control your device again.
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