After getting firmware upgraded by connecting to CUCM 10.5, i did delete the ITL before connecting it to the CUCM 12.0
On Tue, Jan 8, 2019 at 10:53 PM Dana Tong <dana.t...@yellit.com.au> wrote: > You said you were able to get them upgraded on a 10.5x cluster and then > connected them to the 12.x cluster? Did you delete the ITL file when trying > to update on the 12.x cluster? Or have I misinterpreted the steps you tried > here. > > > > Regards, > > Dana > > > > > > *From:* cisco-voip <cisco-voip-boun...@puck.nether.net> *On Behalf Of *Brian > V > *Sent:* Wednesday, 9 January 2019 12:23 PM > *To:* cisco-voip@puck.nether.net > *Subject:* [cisco-voip] Odd phone Firmware upgrade issue - 8811 at > firmware 10.3.1-20 won't upgrade on CUCM 12.0 but will on 10.5 > > > > Odd phone Firmware upgrade issue - 8811 at firmware 10.3.1-20 won't > upgrade on CUCM 12.0 but will on 10.5 > > > > 8811 shipped with 10.3.1.-20 firmware, CUCM 12 and CUCM 10.5 both have > default load for 8811 phones set to 12-1-1SR1-4. > > > > Customer acquired some new 8811 phones with super old firmware. Unboxed > them and attached to the network where other IP phones (8851,8861) are up > and registered to CUCM 12.0.1.22900-11. The 8811 would not upgrade code. > It had an error in the phone log about the default xml config file. Tried > resetting security settings, full factory reset, etc.. Nothing worked. I > was suspecting the old "2-hop upgrade" might be needed, but that didn’t > work either. > > > > I then erased the phone again and connected it to a CUCM 10.5.2 SU2 system > with the latest device pack. The default phone load on this CUCM 10.5 was > the same as CUCM 12.0 and the 8811 phone was still at firmware 10.3.1-20. > The phone upgraded code no problem. > > > > Once the phone was on firmware 12.1.1SR1-4, it registered fine to CUCM > 12.0. > > > > My current working theory is that CUCM 12 seems to use an EC certificate > on the HTTPS service that newer phones use to download firmware ( > https://<cucm>:6972) , and the old firmware doesn’t support it. But if > this was true, why didn’t the 8811 phone fall back to plain-old TFTP over > UDP 69. > > > > I have a TAC case open, but not making much headway yet. > > > > The big issue is that I have 100's more of these 8811 phones in boxes and > having to unbox each of them and temporally connecting to a CUCM 10.5 to > get firmware upgraded is not a task I'm looking forward to. > > > > Recap: > > 8811 phone at firmware 10.3.1-20 firmware will directly upgrade to > firmware 12-1-1SR1-4. on CUCM 10.5 but won't do the exact same thing on > CUCM 12.0-SU2 > > > > Any thoughts on this issue ? > > > > Brian Van Benschoten > > Presidio > > > > > > >
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