Hello everyone. I have a serious problem. My brother gave me his iphone 4 (GSM) after he had restored it to factory setting with the erase all content and data option. I downloaded the latest version of itunes and plugged my iphone 4 into my laptop via the usb cable and synced it. I tried jailbreaking it with redsn0w_win_0.9.9b6 and iphone 3,1_5.0_9A334_restore firmware. Now its sticks on the apple logo and after a few minutes it will go to the spinning wheel but freezes on it. Ok, heres where my problem starts. Itunes accidentially got deleted but I did a system restore on my laptop and got it back but it still won't recognize my iphone. I've tried all the tutorials I can find on the subject. I've tried everything from dfu mode to the recovery mode but itunes still won't recognize it. I looked in the devices and printers on my laptop and I don't see my iphone there either. I'm not very computer savy but I do have general knowledge. If theres any advice that can be shared with me, it would be most appreciated. My phone has been bricked for the better part of 3 weeks now and I really don't know what else to do. If there is anymore info needed on my phone, I'll be more than happy to give it to you. Anyway, any help would be great. Thanks in advance.