[cisco-voip] 7905G phone does not boot up

[Faus, Francisco Jose (Francisco)]

We have a new 7905G that does not boot up properly and keeps on lightening
the HOLD (RED) and Menu (Green) buttons while the screen remains blank.

I think this happens since the first time we switched it to our LAN to
register it with CCM (3.3.4) it was accidentally powered off. Maybe this
corrupted the load or boot image?

Using a sniffer I can only see that the phone is continously requesting
DHCP, receives the IP settings (I have configured a DHCP server to assign
also the TFTP server address) and broadcasts 3 CDP messages without any
answer.

It doesn't try to TFTP anything either so I don't know whether an image
reload is still possible.

Is this phone recoverable? Any hint?

Thanks in advance.
Francisco