"hi again my friendi am when connecting to APM with USB . i have not failsafe and the APM is armed but i am when connecting to APM with 3DR telemetry i have failsaif in the MP !!what do i do now ?thank you"

"hi my friends
i have a problem with 3dr
i have a 3dr 433mhz and radio futaba T6EX and APM 2.6
my 3dr when is fix to APM , my radio control is disconnected and my radio control when is fix to APM my 3dr is disconnected !!
pleas help me what do i do…"

"i have 3dr 433mhz and radio futaba T6EX and APM 2.6
my 3dr when is fix to APM my radio control is disconnected to APM
and my radio control when is fix to APM  my 3dr is disconnected !!
why ?!
pleas help me what do i do ?"