iPhone OS 3.0.1 has been released to fix SMS exploit which could remotely control the victim’s iPhone. This guide will help you unlock your iPhone with the latest iPhone OS 3.0.1 firmware using ultrasn0w. This unlocking guide applies to iPhone 3G and iPhone 3GS only. iPhone 2G users can simply follow the guide I posted here to jailbreak and unlock with firmware 3.0.1.
The infamous folks on the iPhone Dev-Team have just posted some useful tips for iPhone 3G and iPhone 3GS users who have used ultrasn0w to unlock their devices. You can try out the solutions described in the list below to see if they fix some of the problems that you maybe having with your unlocked iPhone running firmware 3.0.
The infamous iPhone Dev-Team strikes again! They have found an old exploit(24Kpwn) which is still present in the bootrom of iPhone 3GS and can be used to jailbreak and unlock iPhone 3GS. So those of you with the latest Apple hardware wont have to wait for too long before you can jailbreak and unlock iPhone 3GS by using ultrasn0w.
Some users who have recently updated/restored to the new iPhone firmware 3.0 have reported to have got into a problem where their phone randomly doesn't ring when there is a call nor does the keyboard or slide to unlock button sound anymore. I got into this problem as well after unlocking and jailbreaking my iPhone 3G with firmware 3.0, my iPhone suddenly stopped ringing on calls randomly, resulting in missing a lot of important calls.
I have received loads and loads of emails regarding all the issues people are facing when trying to unlock and jailbreak iPhone OS 3.0. I have tried my best to answer them by email, and to all the comments in my guides here and here. Here is compilation of all the fixes for the issues that you may be getting when unlocking and jailbreaking iPhone OS 3.0 using ultrasn0w.
Those of you who have updated to iPhone OS 3.0 (jailbroken) might have noticed that your jailbroken apps (Apps installed outside from App Store) have stopped working. Even if you have tried reinstalling them they wont work because these apps require a patched version of MobileInstallation file on your iPhone. Here’s what you have to do to patch the mobileinstallation file on your iPhone.
The following guide will help you running fully unlocked and jailbroken iPhone 2G with OS firmware 3.0 on a Windows PC without having to use any of those PwnageTools out there. If you are using iPhone 3G then you will only be jailbroken, not unlocked.