My iphone 2G turns off randomly. I it is still under limited warranty but I bought the phone from ebay and I unlocked it and jailbreaked it. Can I get apple to fix it or replace my phone? Do I have to delete everything (cydia and the fact that its unlocked) b4 I take it to them or can I just leave it and take it? Any advice would be much appreciated it. I am going today to the Genius Bar.