There are many ways to perform actions from the lock screen on a jailbroken iPhone. These can save time and effort, making iOS even more convenient in different situations. Knober is a jailbreak tweak that takes a simple concept and executes it well, making the lock screen more functional. Normally, sliding the lock screen knob does one thing, unlock the device.
With Knober installed, there are several different actions that can be performed using a special trick. Sliding the unlock knob to the right then back to the left in one smooth gesture will activate the shortcut of your choice. All this happens immediately without unlocking your phone.
The Knobber settings include an option to disable the tweak entirely. The desired action shortcut can be selected from a list of seven different toggles. Currently the list includes the following toggles:
Knober is available on Cydia from ModMyi for $1.00. Check here for instructions on how to jailbreak iOS 6.x with evasi0n. You can also find out how to purchase and install Cydia tweaks with this guide.