I am new to this and purchased a pre modded xbox online. It worked great for a while and now I have issues. WHen you turn it on it loads to the screen where I can choose Memory, Music, Settings, or Phoneix. Usually I would choose phoenix and then get to choose my games or apps and everything was great. Now when i choose Phoenix the screen goes black like it used to but instead of the white text saying Phoneix Bios was being loaded it stays black. I can hear the xbox sounds in the background but nothing happens. The guy i bought it from said it sounds like my software is bad but I have done nothing to my knowledge that would have corrupted it. He said no mod chip is installed and instead he used an exploit and I am wondering what i need to do to reinstall the software to the xbox. I donwloaded the Frost Bios loader and was interested in that but I don't know what to do. Sorry if I wound like an idiot or posted in the wrong forum. Any Help would be greatly appreciated. I am a PC tech so getting technical if needed should be okay(now I must really sound like an idiot). PS. the guy i bought it from wants $50 to repair it so fuck that.