Once you have a valid code from your supplier, you can enter it via the printer's interface or the Embedded Web Server (EWS):

Attempting to force unauthorized firmware modifications or crack codes can permanently brick the printer's Electronic SubSystem (ESS) board, voiding all active warranties and service contracts. Legitimate Ways to Obtain an Activation Code

Always keep your printer's firmware current through official Xerox channels. Be extremely cautious about firmware obtained from third-party sources.

Sometimes a supply error is just a communication glitch between the CRUM chip and the printer firmware.

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.