OK the hardware version is v3, when you turn it on it says which firmware version. Did you just buy it from the manufacturer?
Then I think it might be v3.021 or something similar.
If you have a spare uSD card at home and you want to use the device, copy the contents of the /sbitx/data folder from the uSD card to a USB stick. The manufacturer ships it with a 32-bit OS, and it is worth replacing the OS (an image on a new uSD card) with a 64-bit one, because it is under development. Currently the firmware version is v4.4.
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Gyula HA3HZ
HA3HZ