How to wipe?

I want to sell my Hi 10 Air.
How to wipe all my data?
Tablet is 2 week old, but it is to small for me.
A have trouble with my eyes.:roll_eyes:
Thanks for answering.
Greetings from Zagreb, Croatia

Welcome to the forum, greetings from Spain

You must go to startup, configuration, update and security, recovery, reset this PC. In the process it will tell you if you want to save your data, answer no, put the charger and wait until the process is finished, which can be several hours. Do not turn off even if it seems that the process has stopped as the progress bar does not progress regularly.

Thanks for responding.
Chuwi air is great but I need something bigger.
My Chuwi come from Spain.
Good day!:vulcan_salute:t3::croatia: