well the story began when I updated to the newest frimware (2.66) when I had upgraded I could not connect to my APM 2.0, it would always stop on error showing this messageand than I get "connect failed" and if I click detail I get this
so I decided to downgrade back to 2.4 or 2.5 but then I ran into another problem that I did not have before, at the radio calibration tab it shows 0 (zero) on all channels like you see on the image belowdo you guys have any clue what is going on? my radio works (if I connect the receiver straight to the ESC I can run the motor) I also tried the CLI interface but with no luck, it also just shows 0 on all channels
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I was getting some odd errors writing firmware to my 2.0 also. However in my troubleshooting I was able to flash it using the USB cable after removing the 3DR radio. You may want to try unplugging your telemetry air module.