Default password: 1212.
If the default password does not work, you will need to reset the startup password.
Steps to reset the startup password for the YL-81F display:
1. After switching on the device, when the password screen (18P) appears, press and hold the ➖ and i keys simultaneously for 10 seconds to enter the -Pp screen.
2. Enter the admin password: 1313. (Press the ➕ or ➖ keys briefly to enter the password; press the i key briefly to move to the next digit.)
3. Once the admin password has been entered correctly, press the i key briefly to return to the normal start-up screen.
Then, follow the instructions below to cancel the power-on password:
To cancel the power-on password of the YL-81F display:
1. After powering on, press the ➕➖ keys simultaneously to enter the setting mode
2. Press the ➕ key again to 18P, short press the i key to set, and then press the ➕ or ➖ key to switch the character below to n
3. Long press the i key to save and exit the setting.
