If the printer can't find the update itself, use your computer: Update the firmware on an HP printer | HP® Support
if you use non-HP ink cartridges . HP firmware updates from that period actively block third-party/refilled cartridges. hp officejet pro 8600 firmware update
Tap and then Check for Printer Updates Now . 2. Using the HP Website (Recommended for Troubleshooting) If the printer can't find the update itself,
Before you start, see if you actually need an update. On your printer's control panel: Tap the icon in the top corner. Select Printer Information . Scroll to find the FW Version (Firmware Version). hp officejet pro 8600 firmware update