I bought a Herelink about 2 years ago from 3DXr in UK.
I recently tried to update and got an activation key (this old version does not have the key on the back of the transmitter) from 3DXr. However, the key they provided does not work, and I have tried to redo the steps many times now, while checking for all the normal faults such as timezone, wifi, etc.
We recently bought two new units, and they work like a charm, but the old unit is pretty much an unusable Android tablet at the moment. Is it possible to get a valid key that works based on the serial number I got on the unit?
Thanks in advance. Any help is greatly appreciated.