The ASUS ZenPad S 8.0 launched a little over 1 year ago with Android 5.0 Lollipop out of the box. The company has just announced they will be updating the device to Android 6.0 Marshmallow, but asks that you prepare for the update by doing the following. . . - Backing up data and relocating media file (pictures & video clip) to SD card to reserve enough storage before starting the software update. - Charge the battery to more than 50%. - APP2SD will not be supported, so move apps to internal storage before system upgrade. - And multi-user function won’t be supported if the account is deleted. So Please keep your account to continue usage.