The HP OfficeJet Pro 8620 is a workhorse printer, known for its reliability and efficiency in small office environments. However, HP’s continued enforcement of its Dynamic Security system often blocks cheaper, third-party, or refilled ink cartridges through automatic firmware updates.
Yes. The process is identical for the standard 8620 and the 8620 e-AiO.
On your printer's touchscreen, swipe down and tap the (gear) icon. Scroll down and select Printer Maintenance . Select Update the Printer . hp officejet pro 8620 firmware downgrade new
: The printer may become permanently unusable if the process is interrupted.
On the printer screen, go back to Setup > Printer Maintenance > Update Printer . The HP OfficeJet Pro 8620 is a workhorse
: Go to Setup > Tools > Restore Factory Defaults to reset protection settings.
The tool should detect your 8620. Select it. The process is identical for the standard 8620
To prevent the printer from automatically re-updating itself during the process, unplug the Ethernet cable or disconnect the printer from your Wi-Fi network.
HP OfficeJet Pro 8620 Firmware Downgrade: New Methods & Solutions (2026 Guide)
Install the bare, basic Windows or Mac operating system print driver package to ensure background communication protocols remain uninterrupted.