The title says it all. The popular unlocking tool for iPhone 3GS, 05.11.07 baseband on iPhone 3.1.3/3.1.2 has been successfully ported to work with the latest iPhone OS 4 Beta 4. This port is based on the binaries provided by msft.guy and the original blacksn0w unlock by Geohot.
If you are an expert user, you can give this one a go! But we will highly recommend you to stay away as the official unlock by iPhone Dev Team for iPhone 3.1.3, 05.12.01 baseband will be out as soon as Apple releases the next iPhone along with final version of iPhone OS 4.
Instructions for unlocking iPhone 3GS with 05.11.07 baseband on iPhone OS 4 Beta 4 can be seen in the video attached below.
If you are on iPhone OS 3.1.3, you can follow our step by step guides to jailbreak iPhone 3GS with Spirit here, iPod touch 3G untethered here, and iPad on OS 3.2 here. You can also use redsn0w 0.9.3, redsn0w 0.9.4, sn0wbreeze, PwnageTool 3.1.5 to jailbreak iPhone and iPod touch. Unlocking can be done using ultrasn0w or blacksn0w.
For iPhone 3.1.2 firmware, you can use blackra1n, PwnageTool, redsn0w, sn0wbreeze, ultrasn0w and blacksn0w to jailbreak and unlock your iPhone and iPod touch. [via YouTube]
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