I've been on my computer for 24 hours now. I am going nuts. I'll Paypal $10 to whoever helps me unlock my iPhone 3GS. Here's where I'm at. I have a 3GS 16gb. I'm certain it's the oldbootrom the serial starts with 5K9400..... The Modem is the dreaded 05.16.05 I want to be able to put in my Simple Mobile simcard but so far I cannot "unlock" the phone. I've jailbroken it via RedSn0w and Cydia is installed on iOS 5.0.1 Once I've Jailbroken the phone I tried using Ultrasn0w to no avail then I read somewhere that I needed to change the baseband to the iPad baseband but unfortunately I get an error on the phone itself when using RedSn0w to independently change to the iPad baseband. I am completely lost...I've downloaded Tinyumbrella but I'm not even sure I did that right... Is this even possible to unlock at this point?