infrared light on ussually means a damaged EROM, update EROM with Wotan, it's free, then reflash the phone, read a bit more about updating EROM, maybe search for tutorial. You can also down the EROM from this site and load it with XS++ or SeTool.I recomend Wotan, many people did succesfully and also back-up your GDFS (XS++ or SeTool) it's important. Before doing anything read more.