After having unlocked your iPhone using SAM jailbreak package which tricks Apple’s activation server, it is equally important for you to save valid iPhone baseband activation tickets before Apple fixes the ICCID vulnerability. You MUST do this to ensure continued unlock of your SIM in the future.
In order to backup activation tickets for unlocked iPhone, download redsn0w 0.9.10b8 tool. iPhone Dev Team pushed the updated redsn0w 0.9.10b8 late today only to add the ability to save valid BB activation ticket from your iPhone into a zip file on your Mac or Windows PC. The team has added a new button under Extras->Even More->Backup
Saving activation ticket requires jailbroken iPhone with the afc2 service enabled. It is enabled by default when you jailbreak your iPhone (by either redsn0w, sn0wbreeze, Greenpois0n or Absinthe). If you haven’t jailbroken yet, all jailbreak guides vis-à-vis iOS firmware can be located at our dedicated page - How to Jailbreak.
After you install latest version of redsn0w, you can then backup your activation records available under /var/root/Library/Lockdown. We will soon be publishing instructions on how to save activation ticket using Redsn0w. Stay tuned!
Download Redns0w 0.9.10b8 (Windows/Mac OS X)
redsn0w 0.9.10b8 for Windows (Run in Administrator mode)