TRB500 - 5G NSA not possible after upgrade, 5G RSSI N/A, Type jumping between 5G and 4G+

Following our post I got an update on observed behaviour:

  • As somebody noticed and posted in the forum (in his case with a RUTX50), the Auto-Updater updates the TRB500 (and other devices) to the Latest Firmware even when Stable Firmware is selected. 07.22 is Stable, 07.23 is latest. No matter the selection in the Auto-Updater, it always goes for the latest. Not a good look… (also when we go to Network → Mobile → General to set up our APN, we noticed that there is a pop up at the top which tries to convince us that there is an update to 07.23 available.)
  • We downgraded now to the Stable release as we thought maybe the described Bug was already known in the Latest Release and the Stable one should be, well, stable…
  • Stable Firmware (07.22.4) still shows same or similar behaviour. Performance has not changed. We are still stuck at 4G Speeds with 5G being shown.
  • One thing that changed: 5G is still showing N/A on RSSI but the other metrics show a value. RSRP, RSRQ and SINR all show plausible values. Before that, all of the metrics showed N/A as values.

We will try to downgrade further and find the jump where this bug started…