MuscleNerd, member of the iPhone Dev Team has revealed that baseband – 04.10.01 that comes bundled with iOS 4.3 for iPhone 4 is vulnerable, which indicates that it can be unlocked if Apple does not update it in the final version.
MuscleNerd revealed this news via the following tweet:
Current i4 unlock goal includes til 04.10.01 (4.3b3). Very weird situation…vuln cmds are there, trying to invoke them!
In January, iPhone Dev Team had announced that the unlock for iPhone 4 will be released after iOS 4.3 is released, which is widely speculated to be released this week.
So based on today’s tweet, it means that the new version of Ultrasn0w that will be released after iOS 4.3 is released will initially unlock baseband 02.10.04 (that came bundled with iOS 4.1) and baseband 03.10.01 (that came bundled with iOS 4.2.1) for iPhone 4.
iPhone unlocking expert Sherif Hasim also indicated this possibility yesterday while reply to one of his followers on Twitter:
VaMpYrE7: @sherif_hashim Hi Sherif, I dont wanna ask about an ETA but I just wanna know if uve found an exploit for bb 03.10.01 or not, w8ng patiently
Sherif_Hashim: @VaMpYrE7 the one I found is working for both
Though both could mean baseband 03.10.01 and 04.10.01 or 02.10.04 and 03.10.01.
This means that iPhone Dev Team will probably release PwnageTool for Mac and iH8sn0w will also release Sn0wbreeze for Windows to allow users to jailbreak and preserve their iPhone’s baseband so that it can be unlocked using Ultrasn0w.
It remains to be seen if the new version of Ultrasn0w will unlock baseband 05.14.02 (bundled with iOS 4.1), baseband 05.15.04 (bundled with iOS 4.2.1) and baseband 05.16.00 (bundled with iOS 4.3) for iPhone 3GS and iPhone 3G and if the Dev team will release a method that will allow users to downgrade from 06.15.00.
Note: You can find your iPhone’s baseband by going to Settings –> About –> Modem Firmware
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