Older firmware lacks the latest network security updates patched by HP in recent months. Essential Pre-Downgrade Checklist
Temporarily disable your computer's internet connection to stop HP from immediately updating it again.
Once the firmware update completes, the printer may restart automatically.
Downgrading the HP Officejet Pro 8620 firmware can have unintended consequences: hp officejet pro 8620 firmware downgrade
Note: Many users find that simply running the older installer while the printer is in normal mode works fine, so try Step 4 first. Step 4: Run the Firmware Downgrade Tool
A7: Most modern HP models include rollback protection. Some LaserJet and business‑class printers may offer more flexibility, but the OfficeJet Pro 8620 is firmly locked down from HP’s perspective.
Ensure your printer and computer are connected to a stable power source. Do not turn off either device during the process. Older firmware lacks the latest network security updates
Preparation is critical to prevent errors or a bricked printer during the rollback process.
For 90% of HP OfficeJet Pro 8620 owners, . The printer’s hardware is solid; only the software is predatory. Rolling back to firmware version FDP1CN2033AR restores your right to use affordable ink and bypasses HP’s forced obsolescence.
On the printer display, navigate to > Printer Maintenance > Update the Printer . Tap Printer Update Options . Select Do Not Check . Downgrading the HP Officejet Pro 8620 firmware can
Select and choose Do Not Check or ensure that Allow Updates is toggled to Yes temporarily so it accepts incoming data packages. Step 3: Extract and Run the Installer
The utility will identify the printer, show the current (newer) version, and the version you are installing. 4. Finalizing the Downgrade
It returns ownership control back to you, allowing you to decide what supplies go into your machine. Risks and Preparation Before You Begin
Before downgrading, you must prevent the printer from automatically reverting to a newer version after the downgrade is complete.
A firmware downgrade is not a risk‑free procedure. You are essentially overriding the printer’s low‑level software, and mistakes can have serious consequences.