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January 2010
“Flashing” (Installing) Operating System Images onto the Harmony
This documentation does not include OS-specific install instructions. Each operating system image ships
in its own distribution pack, and developers should consult the documentation for that operating system
image for details on how to install it. However, all of the OS support packs require the Harmony device
to be in recovery mode as a first step. The operating system image packs will in turn reference this
documentation with regards to placing the device into “recovery mode”. Recovery mode is a special,
low-level booting mode that leaves the device ready to receive a new operating system image over USB.
Placing the Harmony into Recovery Mode
To place the devkit into recovery mode:
1) Connect the 15V power supply to the Harmony and to mains power.
2) Power on the device
a. If the device turns on immediately (i.e. the red and green power LEDs near the center of
the main board turn on), you may wish to ensure that the “ACOK” switch on the front
edge of the main board is in the leftmost (BATT) position for future use.
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