DJI Lightbridge User Manual - Manual (Page 5)

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(7) Flight control system OSD work best when more than 6 GPS satellites are searched.
(8) Land slowly ( ≤1.5m/s) with the Phantom 2, as rapid landings can cause it to spin.
Others
(1) We strongly recommend using as many DJI parts as possible.
(2) If you have problems you cannot resolve, please contact your dealer or DJI customer service.