My issue is being dealt via an RMA request through my Dealer. Teltonnika has become involved from there. Hence no thread. The issues only involves RUT240xAExxx units, which looks to be a "stock gap" (maybe due to the chip shortage..?) All my fleet is RUT240x4xxx
I have a master Backup image that I purge too all my units. It so far has worked from batches 55 - 100. I do however have to make sure the FW is the same for the backup to take. So far, we haven't had any real issues. Again, I use RUT240's (RUT240x4xxx). Our fleet consists of 270 units.