Will do, but will that require a re installation of all my tweeks and apps?
Restoring of any kind will wipe all your data. Backup your device first to save your stock data. For package backup, you can either invest in PKGBackup in Cydia, or you can backup your packages manually using MobileTerminal on your device directly, or OpenSSH + a terminal command prompt on your computer such as PuTTy for Windows, CyberDuck for Mac, or your default Terminal application on a Mac.
If you choose to do the manual (free) method, the steps are below.
To manually make a list of all your packages, open up MobileTerminal or an SSH Terminal Client (PuTTy, Terminal, etc) on your computer. Login if you're using a computer.
Run the command
- dpkg --get-selections > installed-apps.txt
Restore your device, re-jailbreak, place the text file back into /var/mobile. Then run the following commands in order.
- dpkg --set-selections < installed-apps.txt
- apt-get dselect-upgrade
- apt-get --fix-missing dselect-upgrade