This is the easiest method as it is done remotely via your web browser.
Register your X4300 on HP’s support site and set up firmware change notifications. One bad firmware is rare, but one missed security patch could cost you everything. Treat your printer firmware like your router’s firmware—with respect and caution.
However, Samsung’s printer division was acquired by HP in 2017. This has made navigating firmware for the X4300 uniquely challenging. This article cuts through the confusion, explaining where to find the correct firmware, why you need it, and how to install it safely.