I wanted to take video/pics from our roof with my new Mini 3 by flying out the window to the roof [1]. Youtube videos said to switch from return to home on signal loss to hover for flying inside. I flew inside, worked nicely, between tables, floor, high bed and even the fridge.

I wondered how the drone would react near the window if it received weak GPS (GNNS). In the staircase it flew eratically, but it was managable. The next day I tried again with the window open and the drone drifted more. I attributed it to wind, landed, closed the window and tried again. Still drift. Suddenly it headed quickly (cine mode) towards the open elevator shaft. I steered it back, but upon release it drifted again, I recovered it again, but the next time I didn't recover it in time and it crashed into the grid and fell down. Fortunately it bounced out of the elevator shaft and someone had put orange/lemon trees over the winter behind the elevator which prevented damage. One wing suffered damage from the grid impact, so I replaced it. The drone seems fine, I was lucky.

I guess the effect of weak GPS can vary a lot depending on GPS signal strength and satellite positions.

Please, please, please, give us an option to ignore GPS. The drone can acquire GPS while it is ignored, so we can use it when it's good. Turning off the GPS receiver could be an additional option, but ignoring it is more important.








[1] ... by flying out, setting the home point to the other side of the house on the map, taking some pics from one side, pressing home, walking in the flat to the other side of the house and intercepting the Mini 3 there, taking shots from the other side and flying back in the window.

Hi there,
thank you for reaching out.

We sincerely apologize for any inconvenience caused. Should your drone be involved in a collision or crash, potentially posing safety risks and impacting its performance, we urge you to return the drone to DJI for a diagnostic evaluation. You may request repair service via this link here: https://www.dji.com/global/support/repair. I hope this helps with your situation!

Weak GPS doesn't crash your drone.
How you fly the drone crashed your drone.


I wondered how the drone would react near the window if it received weak GPS (GNNS). In the staircase it flew eratically, but it was managable.
Flying indoors is not something you should be doing without experience.
It's not as easy as flying outdoors with GPS for position holding and wide open spaces with nothing to hit.
Most experienced flyers probably wouldn't do it because they have experience.

The next day I tried again with the window open and the drone drifted more. I attributed it to wind, landed, closed the window and tried again. Still drift.
Without GPS, your drone has no horizontal position holding ability and no brakes.
To safely fly indoors you have to be very gentle on the sticks and use opposite stick inputs to slow or stop the drone.

I guess the effect of weak GPS can vary a lot depending on GPS signal strength and satellite positions.
There is no such thing as weak GPS.   When DJI say Weak GPS, what they mean is no GPS.
Your building looks like it would effectively block GPS reception.
If you manage to get one or two sats near a window, that's not going to help you because you need sats from across a wide section of the sky, not one or two in just a small part.

Please, please, please, give us an option to ignore GPS. The drone can acquire GPS while it is ignored, so we can use it when it's good. Turning off the GPS receiver could be an additional option, but ignoring it is more important.
Yes, that would be good (but not for what you want), but DJI aren't going to do that.
Years ago all their drones had selectable ATTI Mode, but they haven't included that on any consumer drones since the Phantom 4 or Mavic 2  which came out in 2015/6.