Best way from jailbreaked iPhone 2.2 to jb 2.2.1?

sadam

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May 3, 2009
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Hi everybody,
I'm running a jailbreaked iPhone 2.2 and want to upgrade to jailbreaked iPhone 2.2.1 without loosing my yellowsn0w story.
I've a mbp unibody, osx 10.5.6 and iTunes 8.1.1.
Any hint?
 

sadam

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May 3, 2009
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What I don't understand is this:

To upgrade your phone to 2.2.1 and preserve the state of the baseband you need to create a custom .ipsw with PwnageTool. This custom .ipsw will not contain the baseband update but of course will still give you any new stuff from 2.2.1

How do I to practically avoid the baseband update?