Epson P4000 - Multimedia Storage Viewer Product Support Bulletin page 4

During the update process, the message screen will display the current firmware and
updated firmware versions. Then the message "Updating Resources" will appear.
Important:
Do not remove the battery or disconnect the AC adapter during the
firmware update process.
6. The firmware process is completed when you see the message "Resources Updated
Successfully" displayed on the screen.
7. When you see the message "Shutdown Restart Device", power off the unit and remove
the CompactFlash or SD memory card.
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PSB.2010.03.002