What do you mean not recognising it? not detecting?
Follow this video:
http://www.360mods.net/News/article/sid=87.htmlIt says flashing a 78K drive but its the same process with a 47D
When you get to the flashing part follow the text tutorial not the video as the drive you are trying to flash is a different version to the one in the video.
If you have problems flashing using the flashing program that the Textbook tell you to use download the Maximus Toolbox from Xbins.org and use that to read the drive key and flash the firmware but when you click "Direct Drive Flash (GDR Only)" and "Differential Flash (PATCH)" and another window appears select the "47flash" on the "Flash Program to Invoke" drop down menu.
I had problems flashing the 47D drive with the flashing program that comes with the firmware took me an hour to get it to work constantly trying the standard flashing program and playing with the Maximus Toolbox. Just kept saying "the drive is not responding" Hopefully wont be as hard as it was to flash the drive i was flashing.
Kurt