Hi James,
We tried the alternative firmware that you sent us, unfortunately it did not help in repairing at!selrat.
Now we are back to our preferred modem image again, and we have some positive initial results regarding to at!band. We could use it successfully in a quick test to lock the modem to 3G. We are continuing evaluation for a few more days (we already rolled it out to our problematic unit), and with a bit of luck, this will resolve our other issue too.
Thank you,
Karoly