Sherif Hashim, iPhone hacking expert who had figured out a way to activate iPhone without the need for the official carrier SIM has hinted that software method to unlock iPhone 4 will be released in less than a month.
Unlock iPhone 6, iPhone 5s, iPhone 5, iPhone 4S, iPhone 4
iPhone Dev Team Working On A Solution To Downgrade Baseband 06.15.00 To 05.15.05 For iPhone 3GS, iPhone 3G
Some users have reported significant loss of GPS signal after upgrading to baseband 06.15.00 using Redsn0w or PwnageTool to unlock their iPhone.
MuscleNerd of the iPhone Dev Team has just confirmed that they are working on a solution that will allow users to downgrade their iPhone’s baseband back to 05.15.04.
Some users have reported significant loss of GPS signal after upgrading to baseband 06.15.00. iPhone Dev team has also confirmed that though baseband 06.15.00 is capable of GPS, it might require further hacks.
Activate iPhone Without Official Carrier SIM And Also Fix Poor Battery Life Issue After Unlocking Using SAM
We had reported yesterday that iPhone users who had unlocked their iPhone using a combination of PwnageTool or Redsn0w to update baseband to 06.15.00 and Ultrasn0w 1.2 for iOS 4.2.1 were observing poor battery life.
Developer @sbingner (author of popular jailbreak app – TetherMe) has figured out a way to fix the issue. He has released a jailbreak app called SAM (Subscriber Artificial Module). It tricks your iPhone and iTunes into creating legitimate activation tickets even though you’re unlocked with Ultrasn0w.
If you are observing poor battery life after unlocking your iPhone using a combination of PwnageTool or Redsn0w to update baseband to 06.15.00 and Ultrasn0w 1.2 for iOS 4.2.1 then you are not alone as some readers have reported the issue.
Apple had patched the exploit that allowed users to unlock their iPhone in iOS 4.1 released on September 8 so it has been a long wait for users who wanted to software unlock their iPhone to use it with any carrier.