iOS 7 Beta Unlock With Gevey Sim & Ultrasn0w
To use ultrasn0w or Gevey SIM to unlock your iPhone 5/4S/4/3GS you have to preserve the old unlockable baseband, this can be done by special tools like Redsn0w or Sn0wbreeze which have been not updated for iOS 7 compatibility so far.
iOS 7 Beta Unlock Using SAM
It is possible to unlock your iPhone using SAM if you have saved the Activation Tickets. You can follow our previous tutorial for SAM on iOS 6.1.3 in order to unlock your iPhone running on iOS 7 Beta as the method is technically the same.
iOS 7 Beta iPhone IMEI Unlock
The most easy(and recommended) method for unlocking your iPhone is of course IMEI Factory Unlock which can be achieved by several ways. All you need to do is find out the IMEI number and also the carrier your iPhone is locked to. Then you can simply head over to any factory unlock service like this official IMEI unlock service that will unlock your iPhone on any version of iOS and on any baseband.
iPhone IMEI unlock is a permanent and lifetime unlock which means that your iPhone will not be locked again by iOS updates.
How to Unlock iPhone 5S, 5C, 5, 4S, 4 or 3GS with iPhone IMEI Unlock (Video):