Ar Drone 2 not taking off

Hi,
For some reasons, I can't get my Parrot Ar Drone 2.0 in the air.. When I press the takeoff-button, the props start to spin but the drone doesn't leave the ground.

I'm pretty sure the ESC's and the sensors are fine because when I tilt the drone while trying to takeoff, the props that are tilted down start to turn faster.
I'm quite frustrated and would like to fix this asap.

Regards,
Cecemel

 

Have you by chance changed out the props?

 

No, I didn't.
I did straighten them, before that, the drone would take off and then just drift to one side and crash, after that, what you see in the video happens.

Cecemel

 

Did you remove them at that time? Post a few stills at differnt angles.

 

according to my experience you may change its props then check that