Hp Officejet Pro 8620 Firmware Downgrade -

Launch the firmware package on your PC, select your 8620 from the list, and click Update (or Send Firmware ).

On the printer’s touchscreen control panel, locate the arrow icon (it may be unlit). Press the Back arrow four times in rapid succession. The Support Menu should appear on the screen. hp officejet pro 8620 firmware downgrade

You will need a computer (Windows or Mac) connected to the internet. Launch the firmware package on your PC, select

Disconnect any other USB devices from your computer to avoid confusion. Turn on your HP OfficeJet Pro 8620. Plug the USB cable into the printer and your computer. The Support Menu should appear on the screen

Because HP does not host older firmware versions on its official support site, you will need to source a legacy firmware executable file (usually version or older, which predates the strict chip lockouts) from a reputable third-party printer repair forum or archive site. Step 1: Download the Older Firmware File

On the printer screen, swipe down the dashboard tab and select the icon. Scroll down and select Printer Maintenance . Tap on Update the Printer . Select Printer Update Options and choose Do Not Check .