I copied the zbitx Image today because I was curious about a problem. I have sbitx v2, the hardware is different, and the program logged in fine after starting it.
If you changed the password in the RPi menu-> Preferences -> Raspberry Pi Configuration settings, use that.
It does not ask for a password to enter the terminal. I do not see a link in the manual to ask for a password.
--
Gyula HA3HZ
HA3HZ