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Community Member

7911g stuck in upgrading state after factory reset

Hi, I have 2 7911 stuck in upgrading state, no matter if i connect a AC adaptor or by eth, when the 7911 start, show the upgrading windows and stop.

i tried to make another factory reset, but remanins in the same state.

Any idea or software to recover those ipphones?

Thanks!                  

9 REPLIES
Hall of Fame Super Gold

7911g stuck in upgrading state after factory reset

There are many threas on the subject, please use search function.

Community Member

Re: 7911g stuck in upgrading state after factory reset

Hi Paolo, my problem is trying to assign a IP to the IPphone, if I try with a SW connected to a router and with wireshark in my Pc I dont see the DHCP offer , and the same problem if I put my Pc as a DHCP Server, but in this case I see the DHCP discover, Rcvd DHCP but after it the message " Supress pingable address" and go looking for in the scope and IP but no one run

Any idea what is happenning?

Sent from Cisco Technical Support iPad App

Hall of Fame Super Gold

7911g stuck in upgrading state after factory reset

Something is set wrong in DHCP server, etc.

7911g stuck in upgrading state after factory reset

Are you running DHCP from the router or CUCM?

Can you post the configuration...

Can you check if another phone gets a dhcp address off the same port.

Community Member

Re: 7911g stuck in upgrading state after factory reset

Hi, i tried to configure from a router and from my Pc, but both fails.

I tried with other ipphones and the same response.

Does anybody knows a software to make a bootp instead of. DHCP in a ipphone?

Regards!

Hall of Fame Super Gold

7911g stuck in upgrading state after factory reset

Phones only use DHCP.

If you configure the server, or router, correctly it will work.

Community Member

Re: 7911g stuck in upgrading state after factory reset

Hi Paolo again!

My DHCP is running finally properly, now my 7911 has a IP, now I am trying to transfer from my router with CME a firmware, but the phone is still in upgrading state.

I am trying to regiser the phone in the CME but does not run, neither with autoreg nor step by step ephone, ephone-dn and so on...

How can i transfer a firmware to the phone? with the router or with my Pc.

And if the the phone is still in that state, is possible to register in a CME?

thanks!!

Hall of Fame Super Gold

7911g stuck in upgrading state after factory reset

As mentioned many times.

CHeck "debug tftp events" with "term mon".

Community Member

Re: 7911g stuck in upgrading state after factory reset

Finally i resolve this issue.

With a pc connected to switch port in the ipphone, i transfer an IP and firmware with tftpd32. There was not neccesary netiher any router now any switch

thanks.

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