Nebula factory reset

Tablets Gets Stuck during bootup process with Glory Star Logo

You can do a factory reset.

Prepare the device but do not plug in power.

Press and hold the “VOL +” button on the back side, then plug in the power at the same time.
You should see the screen as below:


Then use the “VOL+” or “VOL-“ button to change the selection to “Wipe date/factory reset”

Press the “power”  button to confirm your selection.