No connection to MP over SIK radio (RFD900+ series)

When using holybro telemetry radios I never have any problems ,
I bought a RFD900 system back in July and it still doesnt work .
I finally got to the point where I have a rfd900ux modem connected to nano talon and TXMOD .
Problem is I cant adjust anything . When I use SIK radio configuration page in MP it says “failed to enter command mode” . Yes I am disconnected to airplane at that point and it still doesnt work !
If I cant adjust power levels I cant use them .
Warning to anybody who buys that system …DONT . When you can spend $50 and get trouble free telemetry radio who would want to mess with things far more expensive that dont work ?
I wish holybro incorporated RC commands into their system .