Pro 8620 Firmware Downgrade: Hp Officejet

In some instances, firmware updates caused "Cartridge Locked" errors where the printer permanently refused to recognize cartridges that were installed before the update. Downgrading became a troubleshooting step for technicians attempting to unlock the hardware from this software-level bricking.

On the printer screen, go to Setup > Tools > Restore Factory Defaults . Restart the printer one last time. How to Prevent Future Firmware Updates hp officejet pro 8620 firmware downgrade

The printer screen will change, showing a progress bar or text indicating a firmware reflash is in progress. Restart the printer one last time

Example filename: OJPro8620_1829A.exe or .bdl It’s an all-in-one printer that has served small

If you own an HP OfficeJet Pro 8620, you know it is a workhorse. It’s an all-in-one printer that has served small offices and home businesses faithfully for years. However, in recent years, thousands of users have found themselves asking one frustrating question: