It is highly recommended to perform the downgrade via a USB cable rather than Wi-Fi to ensure a stable connection. How to Downgrade Your HP 8620 Firmware (General Steps)
Ensure the printer is on and connected directly to your computer via USB. hp officejet pro 8620 firmware downgrade better
Follow the on-screen prompts. The printer's screen will usually show a "Programming" or "Updating" message. Do not turn off the printer during this time. It is highly recommended to perform the downgrade
Is an HP OfficeJet Pro 8620 firmware downgrade better for you? If you are a high-volume printer who relies on third-party ink to keep costs down, the answer is likely a resounding . By rolling back the clock on your software, you bypass the "Dynamic Security" hurdles and return the printer to its original, more flexible state. The printer's screen will usually show a "Programming"
If you’re frustrated by "Cartridge Problem" messages or "Non-HP Chip" errors, you aren't alone. For many, performing an is the best way to reclaim control over their hardware. The Problem: HP’s "Dynamic Security"
Downgrading to an older version of the firmware removes the strict DRM (Digital Rights Management) checks. This allows you to use third-party ink cartridges again, potentially saving you 50-70% on printing costs.
Before you attempt a firmware downgrade, keep a few things in mind: