Hello Guys. If you just accidentally set your password on, do the following:
1 - enter menu (should be enough just to turn on machine and P19 menu will appear)
2- put code 1212 and confirm with button i
3 - display should be unlocked
In case if you set up password but dont remember that, do the following
1 - enter menu (should be enough just to turn on machine and P19 menu will app
2 - press minus button and i button for longer time (until -Pp menu wont appear)
3 - put code 1313 and confirm with i button.
Read also this article:
https://ebikesforum.com/threads/help-with-yl80c-display-stuck-at-19p-need-a-password.5154/
Download manual (watchout there is european and international version guide):
https://engwe-bikes-uk.com/pages/manuals