In the afternoon my tablet crashed so i rebooted it by pressing the power and volume button, but if i go to the lock screen it does not react if i touch it. In the boot menu i was beforehand the touchscreen worked. If i try to completly reset the tablet it either asks for my password but if I type it in it says its invalid even tough i just changed it to be sure and its 100% right. Or the resetting progress just stops and i get a message saying a problem occurred. Can someone pls help me?