CoolBooter is an all-in-one dual booting utility for jailbroken iOS devices, provided completely free of charge.

CoolBooter allows you to dual-boot another iOS with your current jailbroken iOS firmware.

CoolBooter installs require specific operations which may cause data loss in event of failure,
please ensure you have saved a backup of important data from your device, and do not use a device that you would
mind restoring to the latest available firmware.

CoolBooter currently supports going from any jailbroken iOS to an iOS firmware of your
choice on the iPhone 4, iPhone 4S, iPhone 5, iPhone 5c, iPad 2, iPad 3, iPad 4, iPad Mini 1G, and iPod Touch 5G.

CoolBooter is available by adding https://coolbooter.com to your sources in Cydia.

Follow @CoolBooter on Twitter for updates, and for support, just send a direct message.

CoolBooter is a utility created by Jenna Ionetz, and was made possible by winocm, Rod Smith, danzatt,
xerub, iH8sn0w, axi0mX, nyan_satan, qwertyoruiop, and the iphone-dataprotection project.

CoolBooter Partitioner (gptfdisk fork) source
ios-kexec-utils source