A little after updating to .49, and flying well, I started getting "failed" errors when trying to tune some para's. Just three: The "Thr Rate" box and the Roll and Pitch Rate boxes. I'm able to go through setup and everything else, change stablize para's, etc.
I am using a simple USB cable.
I have Reset, Erased, reloaded firmware a few times but the same para's still remain un-editable.
Might I have a bad 2560 board with a bad part of memory? Anything else to do?
Thanks for a great project.