Brother DCPJ525W Service Manual page 271

Note: If loading operation ends abnormally, turn the machine off and on. Wait for the machine
to emit a long beep and automatically enter the firmware loading mode, and then perform the
loading procedure above again.
[ B ] .pmu firmware file
Unplug the power cord of the machine from the electrical outlet and disconnect the USB cable
that connects the machine with your PC.
(1) On the machine, follow the steps below to enter the firmware loading mode.
Models with numerical keypad
1) Plug the power cord into an electrical outlet with the 0 key held down and keep holding
it down until the following appears on the LCD.
2) Hold down the 1 key until the following appears on the LCD.
3) Hold down the 2 key until the following appears on the LCD.
4) Hold down the 3 key until the following appears on the LCD.
Models without numerical keypad
1) Plug the power cord into an electrical outlet with the
down and keep holding it down until the following appears on the LCD.
2) Hold down the Black Start (Mono Start) key until the following appears on the LCD.
3) Hold down the Color Start key until the following appears on the LCD.
4) Hold down the Black Start (Mono Start) key until the following appears on the LCD.
When the black and white pattern shown above is displayed, the machine is ready to
receive programs or data for firmware installation from the connected PC.
Note: Pressing a wrong key or no key within the specified time in steps 1) through 4) above
causes an error. If it happens, unplug the power cord and go back to step 1).
4-18
and Color Start keys held
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