Did you ever get this issue resolved I am having a similar problem and I need to reset the device / default password
No luck so far. The web interface has the SN on the main page so I can copy and paste. The reset feature doesn't even reset the wifi password. My replacement printer has come in so I will do a deeper dive and not feel bad if I brick the machine.
How do I reset the username and password. I have C315 model. I tried Admin with the serial number and still doesn't work
I will look at this tomorrow, if I don't reply ping me for a reminder. The default username was Admin and the password I thought was 1111 - but I would try Admin and the password as the serial number in all uppercase.
Got sidetracked. So far I haven't had any luck. I have tried variations of admin, Admin, 4dmin, etc. and the SN. As soon as sidetrack is finished I will try again. I know for sure the username is Admin but Admin and SN don't work.
Any Luck? Having the same issue
Maybe Admin isn't the default username, I will try other default usernames as well.
No luck so far, maybe the default password is a variation of the SN I haven't tried yet.
Make sure you use a Capital A for Admin.
I have the same issue, factory reset doesn't even reset the wifi key:
I think the default password is not the SN (QRF) or 1111. Low priority since it prints but I will try every number listed on the printer. I will also try every variation of default passwords like llll instead of 1111.
I know it is a default because the person setting up the printer skipped it but which default password. If I find it I will update.