Re: Why is my tablet not saving anything and resetting itself
Welcome to Android Central! It could be a problem with the firmware or hardware, which isn't that uncommon with off-brand devices. Are you actually able to boot into the homescreen, or does it reboot before you even get there? If you can get to the homescreen, try booting into Safe Mode, which temporarily disables all 3rd party apps. On most Android devices, while powered on, press and hold Power until the Power Off menu appears. Press and hold the Power Off selection until the Safe Mode prompt appears. Tap OK.
If the problem disappears in Safe Mode, then something you installed is causing the problem. You may have to uninstall apps one by one until the problem disappears. If the problem persists in Safe Mode, then it's more likely to be a hardware or firmware problem.