Brother MFC620CN Service Manual page 260

(6) Run "FILEDG32.exe" in the folder created.
The Filedrgs window appears as shown below.
(7) Drag and drop the full maintenance program icon onto the BHL2-Maintenance Printer icon in
the Filedrgs window shown above.
When the work PC starts loading the full maintenance program to the flash ROM of the
machine, the machine beeps intermittently. Loading terminates in approx. one minute.
[ 3 ] Loading the latest version of the firmware designed for the FAX model
If the full maintenance program has been installed onto the machine, you need to load the latest
version of the firmware designed for that FAX model after repair.
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