Chosen Solution. The problem could be as simple as an interfering screen protector. Try removing your screen protector or device case and see if the touch screen will work then. Since you already reset your device and it didn't work, try replacing your screen. You may have a faulty screen and digitizer, which is why your device won't respond to Steps. 1. In order to turn on the Android developer mode for your Galaxy Tab, you're going to need to swipe down from the top of your device. . This will bring up the notifications panel. Was this step helpful? Follow the steps below to factory reset it (make sure you follow the steps below exactly or it will not work); Hold down Volume Down and Power until it turns off and the moment it goes off i. before the logo appears, immediately press and hold down Volume Up, Home, and Power buttons at the same time. Hello everyone, Recently a friend bought a tablet (SM-T819) which was in some sort of retail mode or I don't know what. It had "Maas360" security app and it was quite locked up. So, I didn't know what else to do since I couldn't get into settings .

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