We keep discovering iOS 6 features, we've already talked about iMessage, Of the restricciones and the function "Do not bother", and today we are going to explain how to force close an app that has stopped responding. If something characterizes iOS is its stability. I believe the occasions in which my iPad has been blocked with an official version of iOS (without Jailbreak) I can count them on the fingers of one hand, and I would have fingers left. But although this is true, no one is safe from your device being locked at some point, especially if you have the Jailbreak done, whatever they say, it always gives some instability to the system (although it can be minimized by being careful with the applications that are installed). When the device is left unresponsive, and not even by pressing the start button you can exit the application, normally what is used is to turn off the device and start over.
But there is a method that allows you to close the problematic application, and it is quite effective. When an application stops responding and we cannot close it even by pressing the start button, we must press and hold the power button (the upper one) until the "slide to turn off" screen comes out, then we immediately release the button and hold down the start button (the round one) of our iPad, and after a few seconds, the The application will close, the springboard of our device will appear, and everything should work correctly again. If this also fails, you should try to turn off the device, and if you cannot, you will only have to do a Hard Reboot, pressing and holding the power and start buttons at the same time until the apple appears and the device reboots.
More information - Set up Messages on your iPad, Activate restrictions on your iPad, The "Do Not Disturb" feature in iOS 6
Source - RedmondPie
Interesting. Thanks