Hp Officejet Pro 8620 Firmware Downgrade: Better

Ensure the printer is on and connected directly to your computer via USB.

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. hp officejet pro 8620 firmware downgrade better

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