Backup Cydia Tweaks before updating
To automate backups can be very bad news. If you restore your tweaks without going through Cydia, and an update breaks a single tweak, you won’t have a fun time attempting to find the incompatible package that crashes your phone at startup. While minor updates (like 6.1 to 6.1.2) are less likely to cause conflicts, the risk is never zero.
keeping that warning in mind there are a number of options for backing up your Cydia tweaks when upgrading to iOS 6.1.2…
OpenBackup is currently the best solution for restoring your Cydia tweaks. OpenBackup still syncs with iCloud, but it now supports backups of paid tweaks, has a clean user interface, and can now be used to download copies of installed packages along with their dependencies. This way you can keep a complete local copy of your tweaks on your computer’s hard drive in case Cydia is knocked offline. The best thing about OpenBackup is the price; it’s a completely free option. So even if the backup doesn’t work, at least you haven’t wasted your money. Then using iTools you can save your backup files manually.