Well, after all the good news we heard for iPhone 4 unlockers who got unlocks via Gevey Sim, Now MuscleNerd iPhone Dev Team member and Hacker confirmed that Gevey Sim no more unlock iPhone 4 running iOS 5 Beta 2. Means all iPhone 4 unlockers who rely on Gevey Sim for iPhone 4 unlock will not get the unlock on iOS 5 with Gevey Sim.
It is surprising that Apple has locked the SIM Gevey exploits long before the official release of iPhone OS 5 (perhaps pushed by someone).
Apple has finally blocked the GEVEY SIM, which was used to unlock iPhone 4 on firmware between iOS 4.1 to iOS 5 beta 1 on baseband 01.59.00, 02.10.04, 03.10.01, 04.10.01 and04.11.04.
Couple of days back a new Gevey Sim was launched called Gevey Sim Ultra which was used to Unlock iPhone 4 without dialling the emergency number (112), confirmation has been came that it also not working on iOS 5 Beta 2.
For all those who don’t know Gevey SIM for iPhone 4 basically works by forcing the activation of the baseband using the emergency dialer, and it is vulnerable up to iOS 5 Beta 1. You can read more about Gevey sim HERE.
All those who rely on unlock should avoid to update to iOS 5 Beta 2 in any cost or you will lose your unlock forever may be. iOS 5 will officially release this fall, may be the hacker community will come with other exploits to unlock iPhone running iOS 5.