CME 9.1 does not list 9.3(1) firmware as supported
When you plug a 7945 into a CME 9.1 system with 9.2(1) firmware, the phone says "upgrading" and then fails, reverts back to 9.3(1) firmware and works on that. Each time it is reset, it tries to upgrade and fails. The error message is the "Load Rejected HC" one. This seems to say the firmware is not compatible with that hardware...another guy had a similar issue.
If you factory reset the phone, it will not work at all, it just resets constantly, trying to upgrade to 9.2(1) but fails, it never even gets past the upgrading screen so you cannot check the log.
The only fix I've found for phones in this state is to put 9.3(1) firmware on the flash of the CME and tell the phones to use that, they then seem to work fine, however it is not listed as supported for CME 9.1, 9.2(1) is the highest:
I am unable to get my 7945 phones on to 9.2(1) at the moment. My options seem to be to either just leave the phones as they are, let them fail an upgrade every boot and run 9.3(1) firmware, or to actually tell CME to use 9.3(1) and run in an unsupported configuration.
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