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04-11-2011, 08:52 AM #1UltraSn0w Unlock Gets Updated to Support iOS 4.3.1
The iPhone Dev-Team has announced an update to UltraSn0w that makes it compatible with iOS 4.3.1 for basebands previously unlocked:
Weíve pushed out the 4.3.1 compatibility fix for ultrasn0w in Cydia ó itís now at version 1.2.1. If youíre not already at 4.3.1 and you need the unlock, please be sure you understand how to get to 4.3.1 using a custom IPSW that doesnít update your baseband. There are lots of guides for this (like at iClarified.com).
This isnít a new unlock! Itís to allow those who are already unlocked to use FW 4.3.1. It also fixes the signal bar issue for those who arenít using the unlock but retain an older baseband intentionally.
After installing UltraSn0w 1.2.1 you should reboot your device by using the normal power button and "Slide to Power Off" swipe. USA T-Mobile users need to disable 3G mode in Settings:General:Network.
To upgrade to iOS 4.3.1 without upgrading your baseband you can use one of these tutorials
● TinyUmbrella iPhone 4 (Windows, Mac)
● PwnageTool iPhone 4 (Mac)
● PwnageTool iPhone 3GS (Mac)
im on 4.3.1 i4 modem firmware 02.10.04, if you install the update it fixes the signal bars on att
04-12-2011, 04:25 PM #2
Cool beans dude! Looks like i will be back to helping people for a few weeks again!unklbyl
04-13-2011, 02:58 PM #3
Definitely fixes signal bar issue, thanks
04-13-2011, 04:15 PM #4
04-13-2011, 04:52 PM #5
04-18-2011, 10:48 AM #6
Last edited by romeoz; 04-18-2011 at 08:47 PM.