ARCHOS 400 - Manual (Page 57)

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400 to your computer (section
16.1), and then copy the
Update_Gmini400.AOS file to
the root directory of the Gmini
400. The root directory is the
top most level of the directory
hierarchy. Just drag this .AOS
file onto the Gmini 400 Hard disk in your file manager and it will place it
in the top most directory (outside any folder). If there is already an older
version of the Update_Gmini400.AOS file on your Gmini 400, Windows
® will
ask if you want to overwrite the current file. Click on Yes. Once this file is
copied, safely disconnect (section 13.2) the Gmini 400 from the computer.
Next, go to the System parameters under Setup and then scroll down to
Update Firmware and click on it. The Gmini 400 will search for the .AOS
file and will ask you to click Yes, to start the update. Follow the on-screen
instructions. When completed, the Gmini 400 will restart itself and you will
see the new OS version displayed on the bottom right of the screen.