Bionx

G2 console code access

With the battery installed on your bike, turn the BionX on.
Hold down "Power" and "Mode" until you see 4 zeroes.
Enter code the 4 digit code by using plus/minus to change each number and "Power" to move to the next number.
Press "Power" one more time to confirm the code

Links
https://erowbike.com/bionx
https://www.ebike-technik.de/bionx_einstellcodes.php
https://electricbikereview.com/forums/threads/how-to-get-access-to-your-bionx-console-code-menu-codelist-included.519/