Thanks, I tried that and it did upgrade.

Do you know how to get the 8.5.2 firmware???

I have the same issue with 'Auth Fail' and the phone now stuck in a booting loop

I try to download the firmware (cmterm-7942_7962-sccp.8-5-2.zip)

from the Cisco site and get the message

'Cisco service contract information indicates you are not authorized to download software for the following product(s)'

I have active service contracts for CallManager/Unified Communications Manager, CallManager Express, UC520, UC540, Unity, Unity Express, IPCC/UCCX

I do not have contacts for individual phones.

Surely if the issue is caused by a bug, Cisco should allow people to download the firmware that fixes that bug????

Hi Brendan

Unfortunately this is very common. Cisco tightened up access to code downloads on CCO about 6 months ago which has resulted in a lot of wailing and gnashing of teeth from my perspective. The tightened up access doesn't seem to understand when UCSS is active on a contract for example - therefore if my original service contract was taken out for CUCM version 6, I *should* have access to all subsequent releases. This doesn't however happen and I can't get to version 7 or version 8 downloads and causes me a whole load of wasted time and effort despite my service contract entitling me to them (and paying Cisco a lot of money every year for the privelege).

If you have a valid service contract for telephony platforms, then you should be able to download handset firmware. On the error message you mention above there is a contact email - if you drop them a line with your details, service contract numbers and the file you want to download, they should make the file available to you.

HTH. Barry