, a feature designed to prevent the use of cartridges that do not have an original HP security chip. If your printer suddenly rejects cartridges that previously worked, it is likely due to an automatic update. Reverting to an older version (like version FDP1CN1416AR
) often include "Dynamic Security" measures that block the use of third-party or non-genuine ink cartridges .
HP removed old firmware from their site. Try:
The most technical method comes from the open-source community. A user-created script is available on GitHub specifically for downgrading the OfficeJet 86xx series of printers.
HP sometimes blocks downgrades by comparing version numbers. If the utility refuses to run, you may need to put the printer into a hidden Service Mode (by pressing the back button 4 times sequentially while the printer turns on) before running the computer software.
Fixes errors where the printer acts as if the cartridges are empty, even if they are brand new. 🛑 Important Precautions Before You Begin
If your HP OfficeJet Pro 8620 printer suddenly stopped recognizing your third-party or refilled ink cartridges, you are not alone. This issue is a hot topic for many printer owners. A dynamic security update embedded in recent HP firmware updates causes this problem. It blocks non-HP chips, triggers "Cartridge Problem" errors, and stops you from printing.
Recent firmware updates, such as version , aggressively target third-party cartridges. Once your printer installs this version, previously working generic ink will suddenly throw errors. Financial Benefits
This move sparked immediate backlash, leading to lawsuits and interventions from consumer protection groups.
Sometimes, a hard reset can clear the error memory, allowing non-genuine cartridges to work, especially if the firmware restriction is not total.
As the progress bar crawled across the tiny touchscreen, the printer groaned. A "Non-HP Chip Detected" error flashed one last time, like a dying threat. Then, the screen flickered, the gears whirred, and a single page slid out, perfectly crisp and printed with "black market" ink.
firmware downgrade is a high-interest topic primarily because recent firmware updates (like version FDP1CN2022AR
: Select your HP OfficeJet Pro 8620 from the dropdown menu in the update utility.
Select if prompted "Do you want to turn on Printer Updates?". Alternative: Factory Reset
— it may trigger auto-updates again.
