Find the specific that support third-party ink. Find download links for the firmware files. Give you steps for Mac vs. Windows specifically.
The story of the HP OfficeJet Pro 8620 firmware downgrade is often one of technical frustration and a "battle for ink independence." It typically centers around the Dynamic Security hp officejet pro 8620 firmware downgrade
Connect your printer directly to your computer using a ; a wired connection is significantly more reliable than Wi-Fi for firmware changes. Ensure the printer is powered on and in a "Ready" state. Disable Automatic Updates Find the specific that support third-party ink