The Medion Lifetab has Android 4.4 Kitkat installed.
When you ‘re unable to do a software factory reset from within android itself you can do a full reinstallation of your system as follows:
- first turn the Lifetab completely off
- then push at the same time the power and the volume down button until a screen appears with an android figure with a cross and the notification no command
- then push the volume down button to enter the menu
- select factory reset with the volume down or up button and push the power button (= select button)
- then select the yes and push the power button to acknowledge
- sit back and let android restore it’s operating system.
This procedure deletes all your data on you device, so make sure you have a backup of all your data