I have been doing OTAU firmware upgrades for my tradfri devices using the deconz GUI via VNC. Mostly they are going well, especially the mains-connected routers. However, I am having an issue upgrading the signal repeater from 2.3.070 to 2.3.086 (I previously successfully upgraded from 2.2.005 to 2.3.070).
The firmware upgrade to 2.3.086 appears to complete (progress: “done”), but the firmware isn’t actually upgraded, and deconz will try to repeat the upgrade later (again, unsuccessfully). My theory is that the “Secure OTA upgrade introduced” in version 2.3.070 blocks firmware upgrades from coordinators that are not the tradfri hub. This could be an issue for other devices since the release notes indicate that version 2.3.087 for many of the bulbs “Increased security regarding upgrade of firmware”. Can anyone else with a Tradfri signal repeater confirm that upgrades from 2.3.070 to 2.3.086 do not work?