P3 Standard twitches

[omega]

Have just taken my P3 Standard out after some time.
I charged everything up, batt showed 4 lights, tried a start without DJI Go, camera twitched but no engine start..Help!!

 

[sjd]

Have just taken my P3 Standard out after some time.
I charged everything up, batt showed 4 lights, tried a start without DJI Go, camera twitched but no engine start..Help!!

When this happens with my P3 standard, I have to do a Compass Calibrate.

 

[Capt KO]

Without Go you won't see any warnings. Could be several explanations, probably quite simple calibration.

 

[omega]

OK. went to my favourite spot on N. Yorks moors this morning, where I've flown before.
Using Go everything seemed to " go" well!
Ready to fly notice appeared, S1 and S2 in middle, pressed the two sticks to bottom, nothing happened.(except a twitch from camera)
The only message I could see on Go was "SD card not formatted"
Help!!