If you do not block future updates, your printer will automatically re-update to the latest firmware within 48 hours (HP’s new “Silent Auto-Update” policy, introduced in January 2025).
This does not always roll back the firmware version but can clear blocks that prevent third-party ink from working. ⚠️ Important Risks hp officejet pro 8620 firmware downgrade new
If the downgrade fails mid-process, the printer can become a (no display, no USB detection). The only fix would be replacing the main logic board (~$80 on eBay). If you do not block future updates, your
Before attempting to send a file, you must ensure the printer will accept it: On the printer control panel, go to Printer Maintenance Update Printer Manage Updates Allow Downgrade Allow Updates is also set to (temporarily). HP Support Community Step 2: Locate Older Firmware Files The only fix would be replacing the main
By locking out these updates, you prevent the printer from automatically re-applying "Dynamic Security" patches that block the use of non-HP or refilled ink cartridges. Key Benefits of the Downgrade Feature Cartridge Freedom
firmware—typically to bypass errors—you must manually install an older version (like 1640A or 1910A) because HP does not officially support rollbacks. Quick Checklist Before Starting