How to Write a New EEPROM to an Xbox Motherboard

Written by jonathanhuppert
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How to Write a New EEPROM to an Xbox Motherboard
A SATA cable will connect your Xbox 360 to your computer. (SATA connector. A close up. Isolated on a white background. image by Andrey Khritin from

Xbox 360 consoles are made by Microsoft and are distributed with motherboards that hold "EEPROM" software which can be copied and edited. Xbox motherboards can be altered by "flashing" EEPROM files over a Serial ATA cable from the computer to your Xbox 360's motherboard. The EEPROM software automates the copy/edit process, which can be performed in just a few minutes via the application's simple user interface. The Xbox 360 console must be opened before proceeding.

Skill level:

Things you need

  • Xbox 360
  • Computer
  • EEPROM flashing application (JungleFlasher)
  • SATA cable

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  1. 1

    Plug in the SATA cable from your PC to the 360's motherboard SATA connection after removing the console's case. Do not disconnect any hard drives from your PC's SATA ports, as this will cause your operating system to fail to boot up correctly. Use a separate SATA port on your PC to connect the 360's motherboard.

    How to Write a New EEPROM to an Xbox Motherboard
    A Torx screwdriver will open the Xbox 360's case. (a screwdriver image by alri from
  2. 2

    Power on the computer and run your web browser of choice. Download JungleFlasher and install the application.

  3. 3

    Run JungleFlasher and click your Xbox 360 motherboard from the drop-down menu. Choose "Edit EEPROM" and select "OK." The JungleFlasher program will copy your Xbox 360 motherboard's original EEPROM for editing on your PC. The JungleFlasher application will create your altered EEPROM for "flashing" or copying from the PC to your console via the SATA cable.

  4. 4

    Choose the EEPROM file you want to send to the Xbox's motherboard and select "OK." The program then will write the EEPROM file you chose to the motherboard via the SATA cable.

  5. 5

    Completely reassemble the Xbox 360 before powering on the console again.

Tips and warnings

  • Do not run applications or background tasks on the computer during your EEPROM flashing process, as this could slow down performance and harm the motherboard.

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