Android updates frequently introduce new UI layouts, icons, and privacy controls.
This method is . It completely wipes your data and installs a fresh copy of the Android firmware. How To Update Software On DOOGEE U9
This is the standard and safest way to update your DOOGEE U9. How To Update Software on DOOGEE U9 New
If the tablet cannot find an update automatically but you know one exists, you can manually "flash" the firmware: Press and hold Power + Volume Up for