What that means?? sometimes i have the High GPS HDOP but in a few minuts disapear, but later i have this message:
"pre-arm mode not armable"
If i Disable the precheck, i have the same issue...
I am searching on google, but nothing... I have arducopter 3.2.1
EDIT: Issue posted on Github of ardupilot:
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Yeah its the only information that i see in the searching but everything its calibrate... so i will try recalibrate again.. but its strange