The printer is showing the message: "Command error"
Error name: ESP command error
Error code: #17505
On the Original Prusa XL, the XLBuddy board includes a WiFi module, the ESP32. The error is triggered when the XLBuddy is not able to correctly control the ESP32 board, needed to achieve WiFi connectivity.
The firmware needed for the ESP32 module is included in the XL firmware file. 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.
Access the XLBuddy board, and locate the ESP32 module. Inspect the ESP32 board for any visible damage.
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