limited altitude in indoor flights

[JANGER]

How can I unlock the limited altitude in indoor flights?
He displays "no gps... altitude limited to 6m"

I turned off sensors in setting - did not helped.

 

[boblui]

Take off at an elevated position, e.g. on top of a tall ladder.

 

[Physopto]

Take off at an elevated position, e.g. on top of a tall ladder.

What if the ladder is too tall for the room?

 

[boblui]

What if the ladder is too tall for the room?

To the best of my knowledge, there is no other ways

 

[dawgpilot]

The issue is that the drone only has visual sensors without GPS and they are less reliable the further you are from the ground. I imagine this is why DJI set that limit for flying without a GPS lock.