UltraSn0w Unlock Gets Updated to Support iOS 4.3.1

[nhoj_yelbom]

The iPhone Dev-Team has announced an update to UltraSn0w that makes it compatible with iOS 4.3.1 for basebands previously unlocked:

We’ve pushed out the 4.3.1 compatibility fix for ultrasn0w in Cydia — it’s now at version 1.2.1. If you’re 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 doesn’t update your baseband. There are lots of guides for this (like at iClarified.com).

This isn’t a new unlock! It’s to allow those who are already unlocked to use FW 4.3.1. It also fixes the signal bar issue for those who aren’t 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

[unklbyl]

Cool beans dude! Looks like i will be back to helping people for a few weeks again!

[natim]

Definitely fixes signal bar issue, thanks

[nhoj_yelbom]

No problem!

[confucious]

No problem!

I'm glad you could help people by releasing this....

[romeoz]

sweet