Hi guys, my APM has recently started to reboot mid air for no apparent reason. This first happened on the 9th March when I was flying in stabilize mode and all the controls just froze (no response to RC tx, servos all locked, telemetry reporting no data) for a couple of seconds while the plane slowly spiral downwards and eventually it started responding again but it was too late. The plane ended up being stranded on the tree and this was when I caught a glimpse on my laptop saying it's in "Initializing".
Later that evening when I downloaded the logs via USB, the 2 separate log file confirms a mid air reboot and the starting of a new file. I couldn't figure out the problem and for some reason, have a gut feeling it might be the 900Mhz 3DR radio so I swapped it out with a spare. I'd like to attach this tlog or log file but couldn't find it for some reason.
2 days ago after flying both manual and auto without any problems for about 20 mins I decided to take the plane down as it was getting a little dark. I switched to stabilize and slowly brought the plane down and that's when APM rebooted again. This time it was close to the ground and controls freezing only caused a rougher landing. Attached is the tlog for this particular flight. and it's evident the flight ended abruptly (probably because the radio stopped transmitting when APM resets itself).
I've read through brownout theories causing the reset but I have a 5A UBEC and Vcc plot confirms there is no dip in apm supply voltage. Not sure what else could cause this...
Can someone please have a look at the attached tlog and shed some light on this?
*******Post updated with new tlog I can't find from my first flight********