IOS untethered jailbreak using red snow is available for iPhone, Ipad & iPod. This jailbreak won’t work with iPad 2 & iPhone 4s. For jailbreak your device you have to first check if you are on tethered jailbreak or not.
If you are tethered jailbreak you just download Cydia package and search for “Corona”. Install corona & jailbreak now is untethered.
Otherwise run Redsnow on your pc. For this follow these steps:
*Download Redsnow (0.9.10 beta 1) from here.
*Click to jailbreak & plug device to pc & turn off.
*Follow on screen directions.
*Now Redsnow process is completed.