Won't boot, no password for recovery mode

#1

Hi,

I’ve got a UCM6204 that has stopped booting, the scroll bar just keeps going and going. I can get into recovery mode, but either don’t know the right password or it’s not accepting it. I can’t factory reset because that needs authentication in recovery mode (why?) and it doesn’t boot far enough to let me use the display.

Can anyone offer any suggestions?

Thanks,
Richard.

#2

the pswd is written under the UCM, otherwise contact Grandstream Support:

#3

It’s not, must be an older model with “admin” password, which isn’t accepted. I’ll try the helpdesk…

#4

It can be last used password then.

#5

Yes, it should be. But it won’t take the last known password, so I assume it got changed and lost. I’m happy to lose the config, so a factory reset would be fine, but it can’t be reset without the password.

#6

Ask GS via ticket