Firmware missing #17612 (XL)

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What happened?

While flashing firmware to your Original Prusa XL, an error might occur, and the screen will display the following message: "No firmware found in the internal flash! Please flash firmware first!".

Error name: No FW in internal flash

Error code: #17612

This error is shown when there is no valid firmware in the internal Flash memory. This can happen if you restart the printer during the firmware flashing process.

How to fix it?

Download the firmware and if necessary the bootloader, and transfer it to your USB drive. Make sure to unmount the drive from your operating system before physically removing it.

Insert the USB drive back into the printer and reboot the printer using the reset button directly next to the knob to initiate the flashing procedure. In case the procedure does not start, reboot the printer again by pressing the same reset button, and while the printer is booting up, press once the rotating knob.

The printer will let you know when the flashing is done. When installing the bootloader along with the firmware, it may take several minutes.