Today, Musclenerd released an updated version of RedSn0w to support backing up for activation tickets resulting from the SAM unlock.
Instead of doing manual backup, now you can use the new option inside the updated version of RedSn0w to backup your activation tickets. Below is the full change log and iPhoneDev-Team release note.
iPhone Dev-Team Blog Post
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!).