Electronic handbrake wont release
 

Hi,
I have a problem with my electronic handbrake. I was checking the rear brake pads, without replacing, and when i started the car again, the handbrake light was blinking and also the icon on the dashboard. But after I was driving forward (10 meters), the blink was gone and everything was ok. then I went for shopping and when I was at home again, I activated the handbrake, and it started to blink og the dashboard again, and now i cant release it again. it shows "Contact workshop".
I can hear that the motor is working and trying to release the brake.

Hopefully someone can help me.

Thanks

Re: Electronic handbrake wont release
 

I forgot to say, that it is a A6 C6 4F, year 2004 :)