It's unlock running gb, what does your bootloader say? Hold down the volume down button and the power button at the same time and a white blinding display will pop up, as for OTA ICS, I would avoid attempting to download it you could end up with a real mess on your hands, the OTA will not flash properly if your bootloader is running a custom recovery. You might be able to flash a custom ICS roms or even jelly bean depending on your hboot and if you are security off (s-off)
( Don't ask me for help as I couldn't care if your phone explodes, eh!
]Dr EVIL EVO HAHAHAHHAHAHAHA
Don"t ask me for help,couldn't careless if your phone explodes