7971GE will not boot at all
I've just started my Voice lab, but while upgrading the firmware on my 7971GE phone, I apparently messed up something.
Now the phone shows a dark blue screen with nothing on it and I can see that he downloads all the file it needes from the TFTP server, the only problem is that after few seconds it reboots and the procedure starts all over again. The phone never shows any Cisco logo and not a single word on the entire process.
My feeling is that something went wrong and corrupted the old firmware in the upgrade procedure maybe also because I've tryied to upgrade from a very old version (2005).
Not sure if matters but I can see with wireshark that every single packet that the phone sends out says "ethernet frame check sequence incorrect" and for example "0x00000000 should be 0x93F8234A". Maybe it's due to CRC offload I don't really know...
The factory default procedure (123456789*0#) hardly seems to matter cause the phone starts looking for the firware anyways.
Thanks for any advice!