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©2019 NEC Display Solutions, Ltd. Page 10 of 74
On newer releases of the NEC Edition Compute Module, a special bootloader is included on the system
image, which can be used to replace the OS with an image file stored on a USB storage device. Look for
the orange Yodeck logo during boot to see if this is included. See “Using the Yodeck bootloader to
overwrite the current OS” on page 33 for more information.
The OS can be installed after placing the display in the special “USB Boot Mode” function. This allows the
Compute Module to appear as a USB device to another “host” PC or Raspberry Pi. The Operating
System is then imaged, or “flashed”, from the host to the Compute Module over USB. After the OS is
imaged successfully, any necessary configuration options can be made and the Compute Module can be
restarted in normal boot mode.
The “host” can be a PC running Windows® or Linux®, or a standard Raspberry Pi 1, 2, or 3 with
Raspbian OS. If using a Linux based PC or Raspberry Pi as a host, a small utility will need to be
downloaded and compiled on the host.
Important: The Compute Module will not display video until it has been programmed with a
compatible Operating System. No boot or POST screen is shown unless a valid OS is installed.
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