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‎10-14-2021 07:23 AM

HP Recommended
Product: HP LaserJet Pro M428

Hello. 

The formatter board was replaced and I need to update the serial number. I search through google and looked it up to update it via FTP with PJL file but the FTP connection to the printer is refused. Can someone please tell me whether it is the right process or there is something else that the SN can be updated? 

Thank you,

Juraj.

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