Is it possible to downgrade baseband 04.11.08 to 04.10.01 bypassing activation?

[njchen24]

Greetings:

I upgrade my iPhone 4 to iOS 5 a couple days after canceling AT&T service. Is it still possible to downgrade 04.11.08 to 04.10.01 bypassing the activation? I would like to roll back to an earlier baseband so I can jailbreak and unlock my phone.

Any help is greatly appreciated.

[iYeow]

Apple is still signing 4.3.5, so you better hurry and downgrade to 4.3.5 to downgrade your baseband.

[njchen24]

Thank you for your help.

Could you please give me some direction where to start and what do I need (I am newbe to this)? I find out some downgrade process at techeyleaks but it requires activation, which I no longer have.

Do you a know reliable payable service so I can do this easier and quicker? How about downgradeiphone.com services?

Any help would be greatly appreciated.