Thread: How to upgrade iPhone 3GS from 4.1 to 4.2.1
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Old 12-14-2010, 23:01   #2 (permalink)
darksman
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Quote:
Originally Posted by .:.GSM-ANGEL.:. View Post
I have iPhone 3Gs with 4.1 and I have already updated my iPhone's baseband its now 06.15.00..

Now I want to update it to IOS 4.2.1, and want to keep same baseband... I don't know what will be my baseband after updating to 4.2.1, or it will unlockable or not..

well, tell me someboday please, how to update iPhone3Gs with baseband 5.15 to IOS 4.2.1..
why would you upgrade to 4.2.1 as this fw is tethered after JB stay on 4.1 6.15
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