mobile

Hello, I have a problem with my phone, I tried to install the LP rom on my i717 and when it loads the bootscreen it reboots, so I used odin to flash the stock rom but it keeps doing the bootloop at the at&t logo, I flashed the ICS stock rom and it stucks on "Android is upgrading" and it reboots again. I don't know what to do so please help me :crying: