In order to enable full TX (including 70MHz) on the european version add a 0k „resistor“ / solder-bridge on KS5.
For this you need to remove the top of the radio and under it the second cover. Directly next to the heatsink you find a matrix called „TX-OUT J2002-2“. KS5 is the second upper right solder point.
You MUST perform a full reset (in the menu) after this to enable the TX modification.