User guide

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Reference 4
Maintenance Mode
Maintenance ModeMaintenance Mode
Maintenance Mode overviewMaintenance Mode overview
HDMA-4000 Maintenance Mode is the recovery program that is used when the
firmware update, as described in the previous section “Updating firmware,” has
failed and HDMA-4000 no longer functions. It is also used when you forget the user
name and password that you have set in the [User name and Password] screen.
Firmware updates, in this case, are performed in a special Maintenance Mode with
a firmware binary file rather than an archive file.
Connections and SettingsConnections and Settings
(1) Use a serial cross cable to connect the HDMA-4000 to a computer featuring a
RS-232C port.
(2) Start a terminal communication program on the computer.
The communication parameters to use are as follows:
Baud rate: 115200bps
Data bit: 8 bit
Stop bits: 1
Parity: None
Flow control: None
Note
While in Maintenance Mode, do not perform operations other than the ones
described in this section. Doing so may disable any further firmware update
operations.