iOS 6.1 beta was made available to developers recently and those who installed it would notice the baseband or modem firmware for all iPhone models was not changed except for iPhone 5.
UPDATE: Read the updates for the final and public release of iOS 6.1.
Here’s the baseband version for all iOS 6.1 supported iPhones:
- iPhone 5 – 3.04.01 (up from version 1.00.16 in iOS 6 and iOS 6.0.1)
- iPhone 4 – 4.12.02 (no change from iOS 6)
- iPhone 4S – 3.0.04 (no change from iOS 6)
- iPhone 3GS – 5.16.07 (no change from iOS 6)
If you don’t have an official unlock, you should stay away from any beta software update because there’s no method available to preserve your baseband or to unlock new baseband. Having said that, you can always go back to any iOS version if it’s still being signed by Apple (as at today, iOS 6.0.1 is currently being signed and you can downgrade from iOS 6.1 beta).
Related Post: Official Unlock AT&T iPhone 3G/3GS/4/4S and 5 is here.
Some other changes you might have noticed so far are the Maps application in iOS 6.1, where you can see a big “Report a Problem” button in the middle of its interface. Presumably, Apple wants to make that process as easy as possible for end users.
Another example is a redesign of the lock-screen music player controls. The on-screen buttons are spaced well across the entire width of the display.
As the company struggles to fix the flawed mapping service, there are more aesthetic changes to be observed throughout iOS 6.1.
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