OK, So i have a 3GS. Used redsn0w in Windows XP to jailbreak it. No cell signal. Can't unlock. Did it again, upgrade to ipad BB. Jailbroken, no cell signal. (I have a legit Rogers SIM card.) Used wifi to download ultrasn0w from Cydia. Got signal, but horrible battery life. Uninstalled ultrasn0w. Tried to redo redsn0w to see if it was the problem of not getting any signal, got the phone stuck in restore more (the screen has the usb logo and the itunes logo) Tried Tinyumbrella, can't kick it out. What do I do now? Do I NEED to find a MAC and use Pwnage Tool? Please help! Thank you so much in advance.