After a somewhat hard landing, i am no longer able to read the flash card. I get the following error as soon as I try to download logs or do the logging test from CLI"ERR: No dataflash inserted"I have tried reinserting the card, erasing eeprom,…

I have a strange problem on my APM2 quadcopter. It is running lated code 2.4.1 It was working fine the first day, took it out in and flew with no problems. But today, I cannot get it to spin the motors.I hear the normal ESC beeps, when I arm the…