cant upgrade 6941 ip Phones from 8.5.4 to 9.0.2 or 9.0.3.a SCCP

[Support Albakom]

hi,

we have an CUCM 7.1.5 with some 6941 SCCP Phones. some of them have SCCP firmware 8.5.1 or 8.5.3. I can succesfully upgrade to firmware 8.5.4.No I want upgrade them to 9.2 and at first step to 9.0.2 or 9.0.3.

But upgrade doesnt work. phone says

[14:19:....] SEPxxx Get Ip from DHCP Server...

[14:19.....] upgrade from 172.1.2.3

[14:19.....] upgrade fail (read fail)

after install the new firmware and/or change the device defaults I restarted the cisco tftp server, but it doesnt work. can anybody help?

[acampbell · Accepted solution]

Hi,

You are correct.

You need to go via 9.0.2, however it need to be the unsigned version.

See the 9.2.4 readme http://www.cisco.com/web/software/282074289/90710/cmterm-6921_6941_6961-sccp.9-2-4-3-readme.html

Can you confirm that you are using the unsigned 9.0.2 firmware

Regards,
Alex.
Please rate useful posts.

[Support Albakom]

The unsigned firmware was the hint. I used a 9.0.3.a unsigned. Works also. But what the hell is the reason for this? Why must used unsigned firmware only at this point? Doesnt understand Cisco.

[Rob Huffman]

Hi SA,

The firmware for the 6941's needs to be at 8.5(4) as a first step before going to 9.0(2) and then

you must use the "unsigned" files to move to 9.0(2) 

Installation Upgrade Notes

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Direct upgrades, using unsigned load files, are supported from firmware release 8.5(4) to 9.0(2). You can use the following firmware release file for these direct upgrades:

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cmterm-6921_6941_6961-sccp.9-0-2-0-uns.cop.sgn

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Note After  you upgrade from firmware release 8.5(4) to 9.0(2) and for subsequent  firmware releases, you can upgrade or downgrade only to signed firmware  releases.

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Before You Begin

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Before  you upgrade from Cisco Unified Communications Manager (Unified CM)  7.1(x) to 8.(0), you must upgrade to firmware release 9.0(2).

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Installing Cisco Unified Communications Manager

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Before  using the Cisco Unified IP Phone with Cisco Unified Communications  Manager, you must install the latest firmware on all Cisco Unified  Communications Manager servers in the cluster.

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To download and install the Cisco Unified Communications Manager version, follow these steps:

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Procedure

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Step 1 Go to the following URL:

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http://tools.cisco.com/support/downloads/pub/Redirect.x?mdfid=278875240

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Step 2 Log in to the Tools and Resources Download Software page.

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Step 3 Choose the IP Telephony folder by clicking +.

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Step 4 Choose Call Control > Cisco Unified Communications Manager (CallManager).

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Step 5 Choose your Cisco Unified Communications Manager version.

http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/6921_6941_6961/firmware/9_0_2/english/release/notes/6900_902.html#wp174986

Cheers!

Rob

"Show a little faith, there's magic in the night" - Springsteen