The iPhone Dev-Team is currently warning about a potential issue with Ultrasn0w for iOS 4.2.1 with the 06.15.00 baseband. Recently, an increasing number of users with the version of the baseband software are reportedly losing GPS functionality when unlocking their device. The blog posts says they are currently looking for the root cause but have not yet found it. They did note that it isn’t an issue for all or even most users with the baseband. If you haven’t already unlocked using the new version of ultrasn0w, they are suggesting that people should just not expect GPS to work if they want to unlock their iPhones with the 06.15.00 baseband using ultrasn0w:

Update #5: Unlockers have been reporting mixed results about GPS functionality at 06.15.00. Until we can track down what differentiates those who retain GPS vs. those who lose it, be conservative and assume you’ll lose GPS at 06.15.00. As we work on finding the cause (and possibly a fix), please report your personal findings in our comments section.(Update: early indications are that while 06.15.00 is capable of GPS, it will require some further hacks. But please still be conservative and assume you will lose GPS at 06.15, in case the hacks don’t work).

Have any of you experienced such issues? Share your unlock experience with us in the comments below.

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Related Posts:

• Battery Issues Reported After Unlocking iPhone 3G/3GS With Ultrasn0w 1.2
• [How To] Update iPhone 3G / 3GS Baseband to 06.15.00 With Redsn0w 0.9.6b5
• [How To] Update iPhone 3G / 3GS Baseband to 06.15.00 With PwnageTool 4.1.3
• [How To] Unlock iPhone 3G / 3GS On iOS 4.2.1 With UltraSn0w 1.2
• iPhone Dev Team Releases “Unofficial” PwnageTool Bundle For iPhone 3GS
• TinyUmbrella Updated To 4.21.01; Offers Support For iOS 4.2.1

[Source: iPhone Dev-Team (blog)]

Authors: TechHead

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