IOS 7 iPhone 4 Control Center not working?

I have an iPhone 4 and just downloaded iOS 7 yesterday and I noticed earlier today that the control center function has not been working very well. Occasionally it will pop up but 9 times out of 10 it won't, and I have to restart my phone and then try it again, it'll work once and then I'll have to restart again. This also applies to notification center, which I don't care as much about, but this is extremely annoying because I believe control center is the best feature of iOS 7 and it does not work well. I'm thinking something went wrong during the installation process… What are your ideas? Is anyone else having this problem? If so, did you fix it, and if you did, how? Thank you to anyone who answers.

I have found that the only reliable place to swipe is on the very left of the bottom of the screen to the left of the first toolbar icon (if I try to swipe up from the centre nothing happens). Give it a try.

I had the same experience with my iphone 5. I got the Control Center to pop up once out of about 50 tries. I completely reset my phone and reinstalled everything from my backup. Control Center still would not pop up. I finally realized that my Ballistic Case was not allowing me to touch the bottom of the screen. When I removed the case the Control Center worked perfectly. Not sure if you have a case but if so, try taking it off.

Agreed. I was also having the same problem with my iPhone 4 until I removed the heavy duty phone phone/screen protector. Apparently the Control Center swipe MUST start from off the screen area in an upward direction.iOS 7 can not recognize the placement of your finger ON the screen and swiping, it has to be a motion coming from the bottom of the screen upward.

Well, I just pulled down on the rubber case and started the upswipe below the screen and continued upwards. Works every time now.