"All I got was a hard flip on takeoff. I got a new board and my arducopter flies very nicely now. I didn't send the board in because I crashed the heli, but now I might it it's a common issue."

"This was my first experience with ArduCopter and a bad gyro... it lead to my first crash on my VERY first flight. Your guess that it is not a good idea to fly like that is pretty accurate. ;) Original Video - More videos at TinyPic "

"Im having the same sort of issue, but this APM 2.5 is yet to actually fly, its brand new fitted to the air frame. Calibrated everything, yet the hud jumps all over the place sat on the desk.  When i first installed the firmware it was sat on…"

"HI David, I rushed to conclusions. I think I have the exact same problem as you. I thought the erase eeprom command work but apparently the sensors will work for the 1st minute before going sluggish. I suspect this was what caused my 1st crash. My…"

"It was the board. Roll, Pitch, and yaw all stay nice and steady now, as well as altitude."

"I tried everything, and got nowhere. My new board should arrive today so I can compare resutls. It's just really weird yaw would change so much, so fast, with the hexa sitting on my pool table."

"Just curious, did you try the reset button on the board? You might want to try the erase eeprom command again and try a re-calibration."

"the reset and reprogram didn't work. I have a new board on order. It has to be hardware. Altitude is also pretty unsteady with the hexa sitting still."

"I'll give it a try. Roll and pitch are working correctly now but yaw when graphed looks like a heart monitor! I don't think the hardware is really at fault. It looks like the PID loop eliminates error a little at a time, until it gets…"

"You might want to give this a shot. Use the CLI to reset and erase the eeprom and reload the firmware. http://code.google.com/p/arducopter/wiki/AC2_CLI I had the same problem of my new quad APM2.5 crashing causing the gyros and magnetometer go out…"

"Just use the Arduino GUI to upload that code I linked above and it should give you raw Gyro output. You will just need to set the proper board type and serial port, then press the upload button.  if you are into this sort of stuff you could…"

"I do firmware development so I'm sure I can figure out the GUI. I ran the terminal setup / level command and it says gyro did not converge, diff=1.123 (various values). It seems a hard knock must have damaged the gyros. I check the board under…"

"You will need the Arduino GUI... you can follow the instructions located at - http://code.google.com/p/arducopter/wiki/ProgrammingArduino This will require at least a basic understanding of programming an Arduino. Someone may be willing to…"

"How do I run a test from a .pde file? Sorry for now knowing the "basics" yet."

"I forgot to mention for you to try and run the ADC test with the board sitting still. Check the numbers for sanity... http://code.google.com/p/ardupilot-mega/source/browse/libraries/AP_ADC/examples/AP_ADC_test/ "

"You probably knocked your gyro loose. If you are brave you can try to reflow it perhaps. "