Prusa Research MMU3 Manual Del Usuario página 133

PASO 17 MK3S+ Firmware flashing (part 1)
PASO 18 MK3S+ Firmware flashing (part 2)
Let's get back to PrusaSlicer with the Firmware Flasher open (Configuration
->Flash Printer Firmware)
First, select the printer's firmware file on your computer.
(e.g. FW3.13.0-MK3S-EINSY10a_MULTILANG.hex)
Hit Rescan to make sure your printer appears in the Serial port: column
Hit the Flash button.
Wait until you see the Flashing succeeded message.
In case of any issues with flashing the firmware please visit our
article.
10B. Configuración y Calibración MK3S+
Ensamblaje Original Prusa MMU3
Now, let's flash the printer's
firmware too.
Make sure you are using the correct
firmware file for your printer model.
Use the bundled USB Type B cable
to connect the computer to the top
of the black electronics box on the
printer.
troubleshooting
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