Today several users reported that iOS beta 6 4 si iOS 6GM have expired and in some comments I already told you that this will happen at some point. Those who did not believe now have their terminals blocked and of course they have no way to activate them because Apple does not allow this. In this situation, it is unlikely that iTunes will make another backup because it refuses to recognize the terminal, iCloud is inaccessible, but of course you have the option to restore to iOS 6 through iTunes.
All you have to do is to enter the terminal in Recovery Mode or DFU Mode and use the restore function, and iTunes will restore the operating system. You will lose the unsaved data until you receive the message, but you will be able to use the terminal. The easiest way is to enter Recovery Mode, that is, close the device, disconnect the charging cable, press and hold the Home button while inserting the charging cable and the terminal will enter Recovery Mode, with the iTunes logo and a cable appearing on the screen USB.
After completing these steps, press the iTunes Restore button and iOS 6 will be downloaded/installed. If the procedure does not work, you can choose to use DFU Mode for restore. If you need a saved baseband, then I recommend you look in the jailbreak and decoding table for a tutorial. If you have other questions, please leave them in the comments.
