Fpund on forum xda,
“Thread but figured id add a note in case anyone comes looking later :[br]
go through setup, enter wifi and when it comes up asking for previous owners info, hit back till you get to wifi screen, click on 'add wifi' then hit a few random characters, click and hold on the characters and then select 'ASSIST'.[br]
When new window opens up, type chrome and select the chrome app when it shows in the dropdown menu, download and install google account manager 6.0.1 apk, then download and install quick shortcut maker, open quick shortcut maker and then type 'google account manager' in search bar. click on this and then from the options that open, select the 1 that ends with 'loginactivity' and then select 'Try IT', from the new screen that opens up, click the 3 dots at top right of screen and select 'Browser Sign-in'. Log in with your Google credentials, once it goes back to the quick shortcut maker screen, use power button to restart tablet, proceed through setup as per normal and instead of going to the google login screen, itll come up stating that your new accounts are ready for use.[br]
once you have went through setup fully, goto settings and factory reset the tablet, this will get the tablet to a 'brand new out of the box' state and remove those previous credentials from your legally purchased 2nd hand tablet”
Thanks paulpjur!