If you don't know how to deactivate iPhone you are in the right place here. Just use Redsn0w tool to complete AT&T unlock. Release of new Redsn0w 0.9.14b2 came at the time when those who had unlocked their iPhones using free AT&T carrier unlock needed to perform deactivation. It is needed to be done before you connect your iPhone to iTunes to restore it. Because only complete restore using iTunes will get your gadget to be unlocked. This advice came from MuscleNerd, read what he said: Also iPhone deactivation is necessary move if you want to keep your jailbreak alive after using any unlocking solution that requires this. In our case AT&T unlock. Using Jailbreak => Deactivate option in Redsn0w you can avoid restoring and losing jailbreak. This method is not new but quick and easy to do. Just follow steps below and find out how to deactivate your iPhone using Redsn0w successfully.

How To Deactivate iPhone in Redsn0w To Complete AT&T Unlock

Step 1. As you may guess first you need to download Redsn0w. Download Redsn0w 0.9.14b2 Step 2. Now connect your iPhone to the computer and launch Redsn0w. Note: If you are Windows user don't forget to launch it as Administrator. Step 3. Click Jailbreak and prepare to put your iPhone into DFU mode. If you need help in this step follow this link to enter DFU easy. But in case your Home or/and Power button are broken then enjoy new feature in Redsn0w 0.9.14b2 that make possible to build DFU IPSW and enter DFU aromatically. Step 4. Wait till Redsn0w offers you a list of options. All you need to do here is to select Deactivate and click Next. Step 5. After deactivation you need to take your Sim out and Turn iPhone Off. Step 6. Now Turn your device On and connect it to iTunes. Them put your Sim into iPhone and wait for unlock confirmation massage from iTunes. If you receive it now you can be sure that you have just successfully unlocked iPhone. Also you have just learn how to deactivate iPhone to keep untethered jailbreak and avoid restore.