PLEASE HELP!

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I would very much appreciate it if someone would make a better or more descriptive tutorial on how to install the usb spi chip. Thank you ! ;D

If you purchased it, then follow this http://www.tiaowiki.com/w/How_to_JTAG_XBOX_360_Using_TIAO_USB_SPI_Interface You are going to have to mess around inside the 360.
Remember to change the old NandPro software from the tutorial above, and use this new one here instead - http://www.tiaowiki.com/forums/xbox-360-hardware-talk/nandpro-2-0e-jtag-starting-checklist-(all-windows)/
To build your own USB-SPI yourself without buying it, you need to do this - http://forums.afterdawn.com/t.cfm/f-152/how_to_build_a_usb_nand_reader_for_a_jtaged_xbox_360-840770/ | http://www.winpic800.com//descargas/WinPic800.zip