I seemed to have bricked my Sodaq Mbili with RN2483 while trying to upgrade from 0.9.5 to 1.0.0. I tried this via a serial passthrough sketch. Now the serial console only displays "SSFZXAà" and does not show up as RN 0 in the LoRa.jar. In bootmode the jar sees com5 and reports boot loader 1.0.2. I then select the firmware (RN2483_Parser.X.production.Bootloader.hex) and try to upload it. The JAR reports upgrading has started but within a few seconds it resets the screen and shows me the LoRa logo on the right and I have to start again. I've now done this many times, attempted about every serial speed, but again and again: same result.
Any hints/tips on how to reanimate this module or is it permanently wrecked?