Failed to change to loiter mode -- "Requires position"

[MrNams]

Ok, deleted post from here and created under Pixhawk autotune crash.

Pixhawk autotune crash

A very sad incident happened with my hex , it crashed in lake while doing auto-tune in Alt Hold mode. Previously I did auto-tune,but that was with loiter mode, so today morning there was no wind, so i planned to do auto-tune in alt hold mode, unfortunately it went toward lake which near my farm, and collapsed inside lake,with help of dive(paying 40$) i found it, it was inside lake till 4.30pm from approx 7.30am. Sharing log file