If you own an HP OfficeJet Pro 8620, you likely bought it for one reason: . For years, this workhorse was the king of the SOHO (Small Office/Home Office) market. But recently, a quiet war has been raging in printer forums. The battle cry? "How do I force a firmware downgrade on my 8620?"

Ensure you are using a high-quality USB cable (under 6 feet / 2 meters). Do not use a USB hub; plug directly into the motherboard USB port.

Before attempting a downgrade, you must prevent the printer from immediately re-updating to the latest version.

Welcome to the reality of hundreds of thousands of HP OfficeJet Pro 8620 users in 2025-2026. A wave of automatic firmware updates (specifically versions FDP32A and later) has rendered third-party, remanufactured, and even some older OEM cartridges completely useless.

A key "new" feature for the HP Officejet Pro 8620 firmware downgrade is the Automatic Update Lockout

On the printer touchscreen:

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Hp Officejet Pro 8620 Firmware Downgrade New

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