I have a situation where after upgrading to some high-end ESCs, I have one at random go into calibration mode. This happens on about 1 in 4 flight attempts. The only way to restore proper operation is to repeat ESC calibration with Mission Planner.
I have had a dialog with the manufacturer about the issue. His position is that the problem is cause by the Pixhawk EEPROM not retaining calibration data, and that it is a known issue. He has seen it with a number of customers over the years. The solution was apparently replacement of the FC.
I'm not so sure. I've only had problems with the new ESCs. The Pixhawk worked fine for a couple of years with my previous ESCs.
On the other side, my Pixhawks are out of warranty and 3DR isn't supporting them anyway.
Has anyone else seen this kind of issue?
Thanks in advance for any info.