Laserjet M3035xs Send RFU Upgrade error

Mar 13, 2013
I have 5 HP Laserjets M3035xs giving me the message "Send RFU Upgrade". I have tryed the standard way configuring the "HP USB Upgrade" driver with whichever HP Driver, renaming like Hewlett-PackardHP LaserJet Usb Upgrade and using the firmware HP file but doesn't work. There's no way.

So I have seen in the formatter there's a integrated USB connections. Is there some way to upgrade the firmware in a pendrive connected in the formatter?? or another way to upgrade the firmware to this machine??


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