minipix fc has 2 6pin ports for telemetry as telem1 and telem2. sometimes when trying to connect the mission planner to copter using telemetry module sik v3, it doesnt connect with no errors. just searching and nothing happens until timeout. in this situation i replace the telem connector from telem1 to telem2 or vice versa, and then connection stablishes. sometimes none of them make a connection. why this happens?
i tested the telemetry in other copters it is operational.
minipix fc