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iPhone Dev-Team has updated Redsn0w to help help unlockers save their unlock tickets from the recent SAM Unlock that unlocks all iPhones that are currently available. This includes iPhone 3G, iPhone 3GS, iPhone 4, iPhone 4S. If you haven't unlocked your iPhone yet, hurry up before its too late and Apple patches the flaw. You can find the Complete Step-By-Step guide to unlock any iPhone here.
Update #3: redsn0w 0.9.10b8 adds the ability to backup arbitrary directories or files from your device into a zip file on your Mac or PC. The new button is Extras->Even More->Backup and it requires your device to be jailbroken with the afc2 service enabled (most jailbreaks include that). By default it will backup your activation records from /var/root/Library/Lockdown, which is useful for everyone taking advantage of today’s SAM unlock using Loktar_Sun’s trick (more on that in a later post!) - Dev-Team
Once you have unlocked your iPhone, download Redsn0w to save your iPhone unlock tickets.