I had a crash yesterday and after replacing a motor arm I was not able to arm the APM 2.5. I tried to re-calibrate the ESCs but that didn't help. I then tried to connect it to the latest version of Mission Planner using a USB cable and the 3DR radios but neither option worked. When I checked the Windows 7 device manager the device was listed as "Arduino Mega 2560 DFU" and the original driver was no longer recognized. In the past I don't remember seeing the "DFU" in the device name. I tried to re-install the Arduino Mega 2560 driver but get an error that the driver could not be found in the directory where I downloaded it.
Everything was working well before the crash. Can anyone provide some insight into what might have happened and what I can do to fix it?
Thanks in advance for any advice and apologies for initially posting in the original hardware forum.
Ned
Replies
Please check here. Maybe after the crash there is a shortcut on the board and it enters into programming mode.
http://code.google.com/p/arducopter/wiki/APM2Encoder