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Imposter! Fake signature #17606 (XL)

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Relevant for:
XL
Last updated a year ago
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CSPLDEESITFR

What happened?

When trying to install non-official firmware on your Original Prusa XL, the screen shows "Firmware signature verification failed! Only official signed firmware can be flashed".

Error name: Signature verification failed

Error code: #17606

The error is issued when your Original Prusa XL has detected an attempt to flash firmware that does not have the private key signature that verifies the firmware as being official.

How to fix it?

The Original Prusa XL in its factory state only accepts official firmware. In order to flash a custom firmware, you need to break the appendix on the XLBuddy board.

Breaking the appendix on the mainboard of the Prusa XL is IRREVERSIBLE and leads to the
VOIDING OF THE WARRANTY ON ELECTRONIC PARTS OF THE PRINTER. If you break the
appendix, we disclaim any responsibility for any damage to the printer and/or its surroundings (e.g.
in case of a fire).
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