Want to change firmware type for my 7912G. It is based on SIP image CP7912010301SIP050608A
Can I convert it to SCCP CP7912080004SCCP080108A.sbin which is the latest version?
Many thanks. I've spent more than 4 hours reading and testing p.bevilacqua advice, but no luck.
I tried to use a laptop as a tftp server and use a layer3 switch as tftp server. Here is the tftp debug from the layer3 switch:
Jul 14 18:06:43.705 AEST: TFTP: read request from host 172.22.1.91(16262) via Vlan250
Jul 14 18:06:43.705 AEST: TFTP: Opened flash:gk00141c48d472, fd 0, size 45
Jul 14 18:06:43.705 AEST: TFTP: Sending block 1 (retry 0), socket_id 0x1D01490
Jul 14 18:06:43.730 AEST: TFTP: Received ACK for block 1, socket_id 0x1D01490
Jul 14 18:06:43.730 AEST: TFTP: Finished flash:gk00141c48d472, time 00:00:00
Jul 14 18:07:00.901 AEST: TFTP: Server request for port 16264, socket_id 0x1CFE900
Jul 14 18:07:00.901 AEST: TFTP: read request from host 172.22.1.91(16264) via Vlan250
Jul 14 18:07:00.901 AEST: TFTP: Opened flash:gk00141c48d472, fd 0, size 45
Jul 14 18:07:00.901 AEST: TFTP: Sending block 1 (retry 0), socket_id 0x1CFE900
Jul 14 18:07:00.918 AEST: TFTP: Received ACK for block 1, socket_id 0x1CFE900
Jul 14 18:07:00.918 AEST: TFTP: Finished flash:gk00141c48d472, time 00:00:0
Thanks in advance.
I read a lot useful information you've given.
1. download bmp2logo.zip from cisco web site
2. create txt file gk00141c48d472.txt:
188.8.131.52.90 is the ip address of the tftp server
14/07/2008 05:16 PM
14/07/2008 05:16 PM
09/05/2002 10:43 AM 62,976 cfgfmt.exe
14/07/2008 06:02 PM 45 gk00141c48d472
14/07/2008 10:30 PM 97 gk00141c48d472.txt
17/05/2002 05:21 PM 3,022 ptag.dat
4 File(s) 66,140 bytes
2 Dir(s) 7,112,564,736 bytes free
C:\000>cfgfmt gk00141c48d472.txt gk00141c48d472
4. copy file gk00141c48d472 and
CP7912080004SCCP080108A.sbin to the tftp server.
5. power reset IP Phone 7912
I saw that. I have to wait another 48 hours to test that as I do not have PoE switch with me at the moment. Appreciate it.
I will update here after testing.
One more thing, when I tried this ont the 7912G, it looks nothing happened:
try the reset sequence: power off, press and hold #, power on, wait for led to flash in pattern, release #, press in sequence 123456789*0#.
Hi mate, the 7902/05/12 do not support any keypad reset sequence.
Thanks for the appreciation and good luck!
I bought the 7912G from ebay and it comes with SIP image. I would not buy it if I knew that. Should have asked the seller before click the button!!!
When I tried to disable the DHCP on 7912G, it ask me to input the password, is there anyway to reset the password?
No worries, just use a little bit of patience and the phone will do what you want.
The password is set via config file. Perhaps try something like 0000 or 1234.