"Also the APM 2.5 seems to reset (red and blue flashing lights) when I try to connect via Mission Planner, but then MP just times out."

"When I try to load a v3.0.1 sketch via the Arduino IDE it gives the following error:
avrdude: stk500v2_ReceiveMessage(): timeoutavrdude: stk500v2_ReceiveMessage(): timeoutavrdude: stk500v2_ReceiveMessage(): timeoutavrdude: stk500v2_ReceiveMessage():…"

"So I decided to do a complete reload of the latest mission planner (I think 1.2.60 at the time) which re-installed the drivers. It worked and I was able to update with the new software as well as connect. It flies, and everything was fine.
BUT
Fast…"

"Jani,
I think they are fairly new, but I will give that a try. Thanks."

"When I say it hangs, it just takes a long time (expected), and then displays an error (I forget exactly what it was, but I can try again and post the results).

When I use avrdude (via the USBasp) from the command line it correctly identifies the…"

"Thanks Craig,

1. Yes, they're both real. Straight from 3dr.

2. I've gone back through the instructions in detail several times. Everything works exactly as expected (as it did the very first time) except I cannot access the Atmeg 2560 (though it…"

"I have tried connecting on several computers (all of which recognize my other APM 2.5 correctly), but to no avail. I can try reinstalling the driver, but I don't understand how that could be the issue if it was functioning correctly before and is…"

"If you read my post above, that is exactly what I did. I am unable to use MP to load the new firmware."

"I have an APM 2.5 with Arducopter 2.9.2. I was planning to upgrade v3 and as per the instructions, attempted to upgrade the ppm encoder. I followed the directions for APM 2.5 exactly (and used PPM encoder v2.3.16). Everything upgraded as expected…"

"I am also having an issue with the v1.1 boards (avrdude: stk500_getsync(): not in sync: resp=0x00). I have contacted jDrones support several weeks ago, but have not received an answer back."