Ntab II 7" not booting

Was working fine, I use it as a display for my 3d printer. But now it wont boot stuck on the boot animation.

I can get download mode by resetting and holding power and vol up but cannot get adb to connect to it, probably as usb debugging wasnt enabled when it was working.

I cannot get recover using power and vol down (if thats even the right combo for this unit).

Any ideas?

Unfortunately it sounds like an OS issue I’m afraid, especially if you’re able to get to the other menus. If you have your Order Number, or Proof of Purchase available to Direct Message me, I can take a look on our system on Monday for you. See what the best step is on potentially getting you up and running again.