On the printer control panel, swipe down the dashboard and tap the icon. Scroll down and select Printer Maintenance . Tap Update the Printer . Select Printer Update Options . Tap Do Not Check .
Official HP support is unhelpful at best, with company representatives explicitly stating that downgrades are not possible. Unofficial methods exist, but they require technical know‑how, access to hard‑to‑find legacy firmware files, and a tolerance for risk. Some printers accept the older firmware without complaint; others reject every attempt, leaving their owners with no downgrade path at all.
HP frequently updates its printer firmware. While some updates improve performance, many are designed to enforce the use of original HP supplies. Downgrading your firmware offers several benefits:
A successful downgrade on the HP OfficeJet Pro 8620 can restore affordable printing, but the process is increasingly difficult on printers manufactured after 2018. Some units ship with bootloader-level protections that block any downgrade attempt. Always verify community reports for your specific hardware revision before proceeding. hp officejet pro 8620 firmware downgrade
Once your file is ready and your printer is connected via USB, follow these execution steps:
user wants a long article about downgrading the firmware on an HP OfficeJet Pro 8620 printer. This is a technical guide. I need to provide comprehensive information, including why users might want to do this, the risks involved, step-by-step instructions, and alternative solutions. I should also mention HP's firmware update policies, as this can be a contentious issue. To cover all these aspects, I will perform a series of parallel searches. search results have provided a variety of information. Result 0 from HP community gives a vague method. Result 1 says downgrade not possible. Result 2 shows a script. Result 4 is a German discussion about avoiding automatic updates. Result 5 is a French tutorial. Result 0 from search 2 shows how to disable auto updates. Result 3 from search 3 provides a general downgrade guide. Result 6 from search 4 shows third-party ink cartridge errors. Result 6 from search 6 shows HP's dynamic security policy. I need to write a comprehensive article. I will also search for specific firmware files. search results show that firmware files are available. Result 0 from search 7 contains a GitHub script. Result 4 is a guide. Result 0 from search 8 shows a firmware update issue. I will now open some of these results to gather detailed information. have gathered information from various sources. The article will cover the reasons for downgrading, HP's stance, the risks, a step-by-step guide, alternative solutions, and how to prevent future updates. I will structure the article with sections like introduction, understanding the problem, HP's official stance, risks, step-by-step guide, advanced methods, additional tips, and conclusion. I'll cite the sources appropriately. you've been hit by a firmware update that's broken your printer's ability to use third-party or refilled cartridges, you're not alone. This guide explains everything you need to know about downgrading the firmware on your HP OfficeJet Pro 8620, the risks involved, and the steps you can take to protect your printer for the future.
If you want to ensure this process goes smoothly, please let me know: What your computer runs (Windows or Mac)? On the printer control panel, swipe down the
Sometimes the printer is pre-configured to reject older firmware versions. You may need to change this setting on the printer screen:
By reverting to an older firmware version (typically from 2014 or 2015), you bypass these digital locks. ⚠️ Pre-Downgrade Checklist Before starting, ensure you have the following:
If you want to ensure a smooth configuration, please let me know: Your computer's (Windows or Mac)? The exact current firmware version on your printer? Select Printer Update Options
Because downgrading carries real risks, consider these alternatives first:
Disconnect the Ethernet cable or disconnect the printer from your Wi-Fi network.
| Issue | Likely Fix | |-------|-------------| | “Downgrade not allowed” | Printer’s bootloader is locked (newer security). Try an older downgrade file or accept that downgrade is impossible. | | Printer stuck in recovery | Power cycle, re-enter recovery, and re-run the tool with a different USB port. | | USB not detected | Use USB 2.0 port. Disable antivirus temporarily. Try another cable. | | After downgrade, still blocks cartridges | The firmware you used still has Dynamic Security. Seek an even older version (e.g., 1709A). |