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New Member

9951 go black screen after cisco logo

Hi there,

i have some problem with 9951 ip phone, i plug poe and when started, after cisco logo, the phone screenis stack in black

y dont know what happend, what is the key sequence for factory reset on ip phones 9951, is the same that all other ip phone models?

press #, then plug cable, when the light blinks enter 123456789*0# ?? or is different?

any ideas for help please ?

thaks since now 

  • IP Telephony
Cisco Employee

9951 go black screen after cisco logo

As I remember, the key sequence to Factory Reset works even with 9951. Try it.


Pls rate helpful posts by clicking on stars below the post !!

Super Bronze

9951 go black screen after cisco logo


The factory reset sequence is the same, it just doesn't look like it's doing anything. It's not very well documented either, so it's not clear if it just clears settings and loads up the 'bank b' firmware or whether it actually pulls from TFTP immmediately as the 79xx/69xx phones do.


Aaron Please remember to rate helpful posts to identify useful responses, and mark 'Answered' if appropriate!
New Member

9951 go black screen after cisco logo

  Thanks both of you for the help.

im going to try today afternoon and tell you

thanks again and best regards