I have a 3GS that my brother gave me as he bought the iPhone 4. Everything was working today untill my battery died. Its stuck in the apple logo and sometimes the apple logo stays for about 5 seconds and goes away for like 1 second and returns. The iPhone was jailbroken with blackra1n. PLEASE I BEG OF YOU, I need help as I don't want my brother to be mad at me. Thank you