[Answer ID: 14574]
The TeraStation does not boot and the LCD shows the error "E04".
The TeraStation firmware is corrupted. Contact Buffalo technical support for assistance.
The following procedure might bring the product into a bootable condition.
As a repeated reboot may cause other failures,
a contact to your Buffalo Customer Service is recommended.
"After the error message "E04" is displayed,
Hold down the power button for 3 seconds, then the power is turned off and the TeraStation shows the error "E04".
Repeat these steps for several times.
The TeraStation may start with a message including "EM" on the LCD.
In the "EM" mode (Emergency Mode), the shared folders may be accessible after updating the firmware to the latest version.