All, received my Spark this week abd spent sone time for the initial setup - it's not straight forward and not sure if they spent sufficient time on UI experience - very disappointing.
I expected a mich better experience.

However, I'm too stupid to switch off my Spark RC. I tried several combinitian but the RC is still on and draining the batterie - pls help - how can I turn offrhe RC?

Same way you turned it on.  One short press of the power button, then a second press and hold.  You should see the battery level indicator lights (4 white lights) go from right to left, and the RC is off.

Please try to press Pause Button, then press once and hold on the Power button to see whether it will be working.
If it still cannot be turned off, please make sure you upgrade the firmware to the latest, then check again and let us know the result, thanks.

Same problem here, the RC keep beeping if pressing the normal switch off sequence (1 short and hold).

FYI, the firmware had been updated to the latest version. Pressing the PAUSE button plus the normal switch off sequence did NOT solve the problem, and I have to leave it on until the battery die.

Funny, I had read the manual several times, but on/off was not evident to me...I did it by accident...press the button on the rear, you get the lights to show up on the back of the battery, then press and hold for two seconds.  Then it boots up.  Same thing for turning off...

My control does not want to turn right right sometimes 5 minutes trying to turn it on by pressing the on and off button when it turns on and another sacrifice to be able to turn my drone down because of it