⚠️ Downgrading your printer’s firmware will void any remaining HP warranty. However, for most users of the 8620 (a 2014 model), the warranty expired years ago.
But you know your cartridges are fine. You just refilled them yesterday. hp officejet pro 8620 firmware downgrade new
If you successfully downgrade, never connect the printer to the internet again. Use it as a local USB printer only. The moment it touches the web, HP will force the update back on overnight. ⚠️ Downgrading your printer’s firmware will void any
: The printer may become permanently unusable if the process is interrupted. hp officejet pro 8620 firmware downgrade new
Before starting, you must stop the printer from immediately re-updating once the downgrade is complete. On the Printer Panel (gear icon) > Printer Maintenance Update the Printer Printer Update Options : "Do Not Check" or "Off".