Please Register or Log in to view imagesBigBoss released a firmware spoofer called “Firmware 3.1.3″. What this does is actually tricks your device into thinking you are updated which in-turn allows you to install and work 3.1.3 only apps. It will even show your device in iTunes as 3.1.3 and you won’t get that constant bug when you load iTunes to update. This is only supported if you have firmware 3.1.2. Note this does not update your firmware in anyway whatsoever. The author BigBoss also stated that he “thinks that spoofing is a bad idea, but this is a unique time where many users are accidentally updating and losing their jailbreak. Therefore, this package will help prevent that”. Also uninstalling will revert back to firmware 3.1.2. It’s available in Cydia on the BigBoss repo. Use at your own risk.