Just to clarify, I am on 4.0.2 unlocked with 1.59 baseband. I have saved my shsh on tinyumbrella. (4.1, 4.2.1, 4.2b3) I want to upgrade my iphone4 to 4.1 keeping my baseband. If I want to achieve this, all i have to do is use tiny umbrella, click on 4.1, start tss server, itunes, shift restore to official 4.1, and kick it out of recovery? I just want to make sure, before I lose my unlock.