iPhone 3GS jailbreaking

[jchui18]

my friend gave me an old iphone 3GS and asked me to unlock it for tmobile. He UPGRADED to 4.3.4 as a favor (which really is a great disfavor as i was hoping to stay to at 4.3.3 so i can have it untethered) but as i backed up the shsh on tinyumbrella and i see that only 4.1, 4.3.4 and the beta iOS 5 are saved for this phone. i downgraded it to 4.1 and used the ipad BB as i see that is the only way to unlock it. Personally i like the 4.2.1 as it seems to be most stable and battery life is a lot better. is there a way using iFaith to some how get the shsh blob for 4.2.1 or even 4.3.3 in order for me to move the phone to iOS 4.2.1 at the very least? I don't have the shsh blobs for 4.2.1 and i would really like to put this fone on iOS 4.2.1

[iYeow]

Are you using the latest tiny umbrella and click save shsh ? Did you not see 4.2.1 or 4.3.3 shsh blob.

[jchui18]

i used the latest TU to save the shsh. all i have is 4.1, 4.3.4 and the iOS 5 beta. i check the logs again. but its weird its saved 4.1 but not 4.2.1