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blacksn0w SIM unlock

Geohot released his blackra1n iphone unlock yesterday. It's got a tweak for carrier unlock on baseband firmware 05.11.07 called blacksn0w that is installable directly from Cydia if you've already got the phone unlocked.

More details here:

http://iphonejtag.blogspot.com/2009/11/blacksn0w-is-live.html

Not tried it with another SIM card but I do have the 02-UK text back in the title bar so something has changed.

Update: I had already jailbroken my phone via the pwnage tool. Therefore I only needed to run blacksn0w via Cydia.

http://blog.iphone-dev.org/post/232020146/baseband-reprieve