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11.12 Updating Your Firmware
Periodically we may provide firmware updates for your printer. These updates will improve performance or add
additional functionality to your F400. We will provide a .zip file containing the firmware binary and the tools to
write it to the board. If needed, we’ll also provide updated SD card files.
WARNING: This procedure involves touching or manipulating static sensitive components. If you have a ground
strap, we strongly recommend you wear it. If you do not have a ground strap, keep 1 hand touching the metal
chassis at all times to keep yourself grounded to the printer.
Tools Needed:
3mm hex key from your toolkit
MicroUSB cable (same connector type Android phones use)
11.12.1 Prep
Power off the printer and unplug the power cord.
Remove the service door (see section 11.11).
Unzip the files somewhere you can find them on your computer. In the firmware zip file will be:
The firmware .bin file. This will usually have a name like “RRFW_4-1-16.bin” although our naming
convention may change in the future.
Bossac.exe; which is the program that actually uploads the firmware to the printer.
RunMe.bat; a batch file you will run to start the firmware upload process.
11.12.2 Connect USB Cable
The control board is located in the front of the electronics bay. The USB connector is located on the front edge of
the board.
In order to insert the USB cable, you need to remove the SD card extension cable. Gently push on the connector to
release it, then gently pull it free from the socket on the board.
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