no gps

Hello. I need to fly my M2P inside of a large open warehouse with no GPS. I've never done this before and not sure what to expect. Will I still be able to accurately control the drone or will it start squirting around unpredictably? Any help / suggestions would be appreciated! (I do have prop...

Does anyone know why DjiGo was telling me I had No GPS? I clearly had satellites and my flight was tracked on the map etc. I did notice that DjiGO was telling me it was ready to fly (vision) instead of the normal message. I know there is a thread already about this on here but it didn't have...

Hello everybody... I found out something very strange today... It looks like that Mavic will RTH EVEN WITHOUT GPS!!! That's a reason for fly-aways... Where (and HOW) does Mavic go without GPS??? What happened: Normally I take off and land indoors, without GPS, without any issues... I take off...