We’ve released stable 29 firmware version yesterday. You still need to enable hidden toggle in ReachView 3, but no need to subscribe to Beta firmware.
If you want to get rid of SIM card on the rover, BLE is a good way. You can test it, and I’ll help you in case of any difficulties. The workflow is still the same as described in Egor’s post.
Anyway, you always have a workaround: just connect the device to your mobile hotspot. But in my view, BLE is way easier to maintain.
P.S. Fixed phrasing a bit to avoid misleading.