Download = http://ww1.microchip.com/downloads/en/devicedoc/MCHP_App_%20Lib%20v2010_02_09_Installer.zip
Extract
Microchip Application Libraries v2010-02-09 Installer.exe to desktop. Launch and agree to the terms. Let it use the default folder location of C:\Microchip Solutions.
http://www.tiaowiki.com/w/How_to_JTAG_XBOX_360_Using_TIAO_USB_SPI_Interface#Prepare_TIAO_360_USB_SPI_Interface
Navigate to EDC:\Microchip Solutions\USB Tools\MCHPUSB Custom Driver\MCHPUSB Driver\Release
Use that location during the Tiaowiki tutorial (
Hardware Update Wizard screen).
Go to EDC:\Microchip Solutions\USB Tools\Pdfsusb for the program. It's also located in the Start Menu.
http://www.tiaowiki.com/w/How_to_JTAG_XBOX_360_Using_TIAO_USB_SPI_Interface#Prepare_TIAO_360_USB_SPI_Interface
Now follow this method using modified files for NandPro 2.0e for getting the
Memory Access LibUSB drivers in Device Manager (For the other
Hardware Update Wizard screen) -
http://www.tiaowiki.com/forums/xbox-360-hardware-talk/nandpro-2-0e-jtag-starting-checklist-(all-windows)/
Update: I just noticed that the driver dates are newer for v2.6a. This might be your Tiaowiki USB SPI fix after all.
The driver dates for the older version that Tiaowiki provided are 2 years behind. There are no new PicFlash.hex files since it is modified for reading the NAND. You can ignore PicXBoot.hex - this bootloader code was already flashed into the USB SPI already during manufacturing. The PDFSUSB program should look the same as the Tiaowiki tutorial when you are about to flash the hex, meaning that it should detect the USB SPI device as
PICDEM FS USB 0 (Boot). You only need to flash the PicFlash.hex file.