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HP LaserJet Printers and Multifunction Devices - How to Disable Remote Firmware Upgrades
The firmware upgrade operation updates or replaces device operating system code on HP printers and multi-function devices, and is commonly referred to as a “remote firmware update” (RFU). The Remote Firmware Upgrade setting determines if the firmware update process is allowed to be performed.
RFU Update Configuration Best Practices
Performing a Remote Firmware Update (RFU) is typically the responsibility of an administrator within an organization. For security reasons, RFU is an option that should only be enabled when new firmware is being loaded. RFU should be disabled at all other times.
Updating the RFU Setting
There are multiple methods to configure the RFU option. The setting can be configured for multiple devices simultaneously using the HP Web Jetadmin (WJA) fleet management tool. Devices can also be configured individually through a web page, however some older HP Printers require HP Web Jetadmin. Some low-end printers manipulate the setting from the control panel menu.
HP Web Jetadmin Method
To disable the RFU setting from Web Jetadmin
Figure 1: Disabling the RFU setting from Web Jetadmin
Embedded Web Server (EWS) Method
To disable the RFU setting from the EWS
Control Panel Methods
There are several Control Panel configurations that support configuring the Remote Firmware Upgrade settings.
Products with a color touch screen, two line LCD display or graphical LCD
Products without a display
HP LaserJet P2035:
HP LaserJet Pro CP1025nw:
HP LaserJet P1500n:
The following devices support the stated RFU disable options:
= Buttons and lights
= 2 line monochrome LCD
= Color LCD with conventional buttons
= Color LCD Touch screen