February 11 Updates on iPhone 4 Unlock, iOS 4.2.1 Jailbreak, Baseband Downgrader and GPS Fix

Published on February 11, 2011 by Richard Ker

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Here’s a quick summary of where things are as of 11 February, 2011 with unlocking iPhone 4, Jailbreak iOS 4.2.1, iPad Baseband 6.15.00 downgrader etc:

Unlock for iPhone 4 with baseband 2.10.04 and 3.10.01 – iPhone Dev Team won’t release it until iOS 4.3 is public
Unlock for baseband 5.14.02 and 5.15.04 – probably will never be available, the workaround is to use iPad baseband 6.15.00 which has some potential risks.
Untethered jailbreak for iOS 4.2.1 and iOS 4.2.6 (Verizon iPhone 4) – fully working with GreenPois0n RC5 [download IPSW and jailbreak tools here]
Untethered jailbreak for iOS 4.3 – work in progress
iOS 4.3 – will be embedded with baseband 4.08.00 for iPhone 4, 5.16.00 for iPhone 3GS and 7.11.00 for iPad – no unlock available for all these basebands
Baseband downgrader for iPhone 3G and 3GS on baseband 6.15.00 – no latest update
Fix for GPS issue for iPhone iPhone 3G and 3GS on baseband 6.15.00 – no latest update
Sn0wbreeze 2.2 – work in progress released!
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