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Bricked 7945G

eoinwhite
Level 1
Level 1

I've been handed two 7945G's one thats stuck on upgrading and one with a blank screen.

When I do a factory reset they I can see from the switch that they get power (15.4W) but thats it, they are not recognised as Cisco phones on the Cisco switch over CDP (thus they are not dropping down to 6.3W). The mac address of the phone doesn't even show up on the switch.

So I created a console cable to console through the AUX port. From the phone I saw that it was trying to send DHCP discovers but not getting a reply

NOT 15:58:56.018630 DHCP:  dhcpSendReq: status 0x0
NOT 15:58:56.019180 DHCP: Sending Discover...
WRN 15:59:00.010078 DHCP: response not received, try again...
WRN 15:59:08.010087 DHCP: response not received, try again...
WRN 15:59:24.010081 DHCP: response not received, try again...

Then I noticed that the LED on the switch port wasnt even on even though the phone was getting power. So I got another switch (non POE) and got a power cube and connected the phone to the non POE switch via the PC port using a X-over cable. I also put a DHCP/TFTP server on my laptop with the phone firmware.

This time the phone got IP but thats it it makes no attempt to TFTP through the PC port (fair enough) but the switch port on both phones just seems to be dead (even though POE on phone is working)

Any Ideas ?

16 Replies 16

Thank you for your kind reply, i appreciate your help please,

I've used Install/upgrade Utility to Install the following Files:

     cmterm-7945_7965-sccp.9-0-2SR1.cop.sgn

     apps45.9-0-2ES2.sbn

     cnu45.9-0-2ES2.sbn

     cvm45sccp.9-0-2ES2.sbn

     dsp45.9-0-2ES2.sbn

     jar45sccp.9-0-2ES2.sbn

     SCCP45.9-0-2SR1S.loads

     term45.default.loads

And they are uploaded successfully by checking the TFTP Dir.

Then the "Device Defaults Configuration" Shows that Load Information Column has SCCP45.9-0-2SR1S in the text box.

What then could be missing should i retrieve it in order to bring my 7945 back to life.

Thank you a lot in advance.

mohamed.afifi
Level 1
Level 1

I had the same problem and I was able to fix it by passing the ip address of the tftp server in clear text format

ip dhcp pool phones

option 66 ascii 10.1.1.2 10.1.1.1