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7941G Phone Screen Blank. Not able to Upgrade the Firmware

balaji.bandi
VIP Guru VIP Guru
VIP Guru

Hi All

 

I have Phone Cisco 7941G, iam try to upgrade i mess with that phone i believe, now screen is blank

 

I have followed the below steps :

1: Disconnect the computer from your Network and Connected to Different Switch, where Phone and PC Only connected to that  network

2: Phone and PC connected to Switch
3: Configure a static IP on the computer and disable any firewall.
3a: Use an IP of 10.10.10.1
3b: Use a Mask of 255.255.255.0
3c: Gateway and DNS can be left blank

4: Install and open TFTPd32 software

5: Click settings and modify the following:
5a: In the GLOBAL tab, uncheck everything except TFTP Server and DHCP Server
5b: In the TFTP tab, set a Base Directory to somewhere convenient ( where my files are located).
5c: In the TFTP tab, set TFTP Security to None
5d: in the DHCP tab uncheck all DHCP Options

6: Restart TFTPd32

7: Click on the settings tab and modify the following:
7a: In the DHCP tab, set IP pool starting address to 10.10.10.3, size of pool 2, mask 255.255.255.0, additional option 66 and 10.10.10.1 then click OK

8. Click on the Log viewer tab

9: Plug in the power of the phone and watch the logs.

I see below logs keep poping same logs.

 

Rcvd DHCP Rqst Msg for IP 0.0.0.0, Mac 00:26:99:45:8C:DA [23/12 13:28:26.724]
Previously allocated address 10.10.10.3 acked [23/12 13:28:26.724]
6512 Request 2 not processed [23/12 13:28:26.734]
Connection received from 10.10.10.3 on port 49152 [23/12 13:28:26.794]
Read request for file <term41.default.loads>. Mode octet [23/12 13:28:26.795]
Using local port 53590 [23/12 13:28:26.795]
<term41.default.loads>: sent 2 blks, 654 bytes in 0 s. 0 blk resent [23/12 13:28:26.801]
Connection received from 10.10.10.3 on port 49153 [23/12 13:28:28.044]
Read request for file <term41.default.loads>. Mode octet [23/12 13:28:28.046]
Using local port 53591 [23/12 13:28:28.046]
<term41.default.loads>: sent 2 blks, 654 bytes in 0 s. 0 blk resent [23/12 13:28:28.051]
Rcvd DHCP inform Msg for IP 192.168.1.99, Mac 6C:88:14:7F:17:24 [23/12 13:30:52.950]
Rcvd DHCP inform Msg for IP 192.168.1.99, Mac 6C:88:14:7F:17:24 [23/12 13:30:55.950]
Rcvd DHCP Rqst Msg for IP 0.0.0.0, Mac 00:26:99:45:8C:DA [23/12 13:31:21.618]
Previously allocated address 10.10.10.3 acked [23/12 13:31:21.618]
6512 Request 2 not processed [23/12 13:31:21.618]
Connection received from 10.10.10.3 on port 49152 [23/12 13:31:21.671]
Read request for file <term41.default.loads>. Mode octet [23/12 13:31:21.671]
Using local port 64619 [23/12 13:31:21.671]
<term41.default.loads>: sent 2 blks, 654 bytes in 0 s. 0 blk resent [23/12 13:31:21.682]
Connection received from 10.10.10.3 on port 49153 [23/12 13:31:22.909]
Read request for file <term41.default.loads>. Mode octet [23/12 13:31:22.919]
Using local port 64623 [23/12 13:31:22.919]
<term41.default.loads>: sent 2 blks, 654 bytes in 0 s. 0 blk resent [23/12 13:31:22.919]
Rcvd DHCP inform Msg for IP 192.168.1.99, Mac 6C:88:14:7F:17:24 [23/12 13:32:21.322]
Rcvd DHCP inform Msg for IP 192.168.1.99, Mac 6C:88:14:7F:17:24 [23/12 13:32:24.330]
Rcvd DHCP Rqst Msg for IP 0.0.0.0, Mac 00:26:99:45:8C:DA [23/12 13:34:15.567]
Previously allocated address 10.10.10.3 acked [23/12 13:34:15.567]
6512 Request 2 not processed [23/12 13:34:15.567]
Connection received from 10.10.10.3 on port 49152 [23/12 13:34:15.617]
Read request for file <term41.default.loads>. Mode octet [23/12 13:34:15.617]
Using local port 56662 [23/12 13:34:15.617]
<term41.default.loads>: sent 2 blks, 654 bytes in 0 s. 0 blk resent [23/12 13:34:15.627]
Connection received from 10.10.10.3 on port 49153 [23/12 13:34:16.861]
Read request for file <term41.default.loads>. Mode octet [23/12 13:34:16.861]
Using local port 56663 [23/12 13:34:16.861]
<term41.default.loads>: sent 2 blks, 654 bytes in 0 s. 0 blk resent [23/12 13:34:16.871]
Rcvd DHCP inform Msg for IP 192.168.1.99, Mac 6C:88:14:7F:17:24 [23/12 13:34:46.280]
Rcvd DHCP inform Msg for IP 192.168.1.99, Mac 6C:88:14:7F:17:24 [23/12 13:34:49.283]
Rcvd DHCP Discover Msg for IP 0.0.0.0, Mac 38:AA:3C:51:02:85 [23/12 13:36:11.185]
Client requested address 0.0.0.98 [23/12 13:36:11.185]
DHCP: proposed address 10.10.10.4 [23/12 13:36:11.205]

 

My TFTP Folded have below files shown in the Image.

 

How can i make it work  from non-working phone to working phone..

 

any suggestions most welcome, tried last 2days but no results, googled many pages and read related article does not help me.

 

 


 

 

BB

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2 Replies 2

mohamed helmy
Beginner
Beginner

Hello Bandi,

 

can you please mention what is your system? CUCM or CME? and version

and what are the IP Phone old and new firmwares?

 

Regards

Regards, Mohamed Helmy

Hi

I do not know the old version of Cisco 7941G

I got one for testing myself for my LAB, Want to reset the Password, but I did Factory reset by keying 124567890*#

iam trying to Load 9.2X tried both SCCP and SIP, both iam getting the same error.

At the moment iam not going to use for any CME or CUCM, iam want to use for my SIP provider and my SIP Server.

 

Bandi

BB

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