Hi!
Recently I got a VVX 1500 phone that I've been trying to upgrade. It's on really old software currently... BootBlock= 2.8.1, BootRom= 4.1.2. Application was on 3.1.2 before it erased itself.
I've tried following this guide here: https://www.poly.com/content/dam/www/products/support/voice/cx/other/vvx1500-ug-bmp-2ucs-5-2-0.pdf
Problem is that whenever I try to actually upgrade the bootblock (by holding down the appropriate buttons), the update fails and the phone formats itself. Then it tries to boot, figures out that application on boot server isn't compatible and reboots itself again The logs are pretty much useless - I've attached them here.
I have a feeling that I need to find the 2.9.0 bootblock and boot rom files and try to do incremental updates (as described here: https://www.poly.com/content/dam/www/products/support/voice/polycom-uc/other/vvx1500-upgrade-to-v3-2-2-tb53522.pdf ). But these files are not available anywhere. Is it possible to download these somewhere? Or at least the old 3.1.2 application that works on this phone?