it seems around 2020-2022 there were multiple models completely “refreshed”. there is an MTM5450 which works only with MR2022 and newer. there are also MTP3000 models in “rev. B” which only work with MR2022.3.1 and newer.
still the new software packages contain codeplugs and firmware for the older hardware models. the release notes of the manufacturer say the old model support is dropped and cannot be upgraded.
is it possible to bring an MTM5400 or a rev. A MTP3xxx over this magic software version change?