Hi, I know this is kind of a dumb question but is it normal for my drone to be drift a bit from it take off positon ? Like the drone will sometime drift to the right or left for 3-5cm and then either standing there or coming back to it's old position and also decend / ascend for 2-3 cm up or down. The light was good so my drone down sensor works fine. There is no GPS indoor of course, and I fly with a Mini 2. So my question is : Is it normal for a drone to be drift out of it position a bit when flying indoor with no GPS ?

Note : I calibrated IMU, compass and gimbal

Thanks you guys so much for answer / Tri

Without GPS, position holding is provided by the VPS sensors.
VPS needs a good lighting and a recognisable pattern or texture to work properly.
If the lighting isn't good enough or the floor surface doesn't have a good pattern, you will see some drifting.

Here's what the specs suggest:
Vertical: ±0.1 m (with VPS), ±0.5 m (with GPS Positioning)
Horizontal: ±0.3 m (with VPS), ±1.5 m (with GPS Positioning)
3-5 cm is well within specs, so is normal.

Hello there Tri. Thank you for reaching out and for giving out these information.  Just a reminder that DJI do not recommend flying your DJI Mini 2 indoors as the environment indoors may have interference and caused an incident and also during low light condition as the vision sensors may not work properly. In addition, if you really need to fly indoors kindly please use a DJI Mini 2 Propeller Guard and activate the Payload mode on the DJI Fly application. The DJI Mini 2 Propeller Guard protects the propellers and other objects from damage. Thank you.

DJI Stephen Posted at 5-27 02:08
Hello there Tri. Thank you for reaching out and for giving out these information.  Just a reminder that DJI do not recommend flying your DJI Mini 2 indoors as the environment indoors may have interference and caused an incident and also during low light condition as the vision sensors may not work properly. In addition, if you really need to fly indoors kindly please use a DJI Mini 2 Propeller Guard and activate the Payload mode on the DJI Fly application. The DJI Mini 2 Propeller Guard protects the propellers and other objects from damage. Thank you.

Ok I will remind myself next time when I fly indoor. But what does the Payload mode actually do ?

Labroides Posted at 5-27 01:11
Without GPS, position holding is provided by the VPS sensors.
VPS needs a good lighting and a recognisable pattern or texture to work properly.
If the lighting isn't good enough or the floor surface doesn't have a good pattern, you will see some drifting.

This is where I let my drone hover on. The light seems ok and the floor texture is not too complicate so the VPS still works well I guess. But thanks to you now I know my drone is still fine

How about this then: Shot with Mini 2.  Inside, of course, prop guards and in payload mode.

  

djiuser_kmvNZroSTsCy Posted at 5-27 02:36
Ok I will remind myself next time when I fly indoor. But what does the Payload mode actually do ?

Payload mode compensates the extra weight of the propeller guards.

Tried flying inside when I first received mine and instantly encountered the drifting.  Lack of experience on controls led me to zig when I should zag and hit the wall or other objects.... gave up on that!