Press the buttons in this exact sequence: .
A7: Most modern HP models include rollback protection. Some LaserJet and business‑class printers may offer more flexibility, but the OfficeJet Pro 8620 is firmly locked down from HP’s perspective.
This is the most straightforward method if you have downloaded the older official HP firmware installer utility. Step 1: Prepare the Printer hp officejet pro 8620 firmware downgrade
If you can source the older firmware version (such as version FDP1CN1416AR ), you can manually push it to the device. HP Support Community Source the File:
The HP Community forums are filled with firsthand accounts from OfficeJet Pro 8620 owners. One user described their frustration with firmware FDP1CN2022AR, stating, “I can unfortunately no longer use third-party cartridges” and appealed for any tip regarding an old firmware version. Press the buttons in this exact sequence:
A particularly sobering account came from a user who downgraded successfully but then discovered that their printer — the device silently re‑updated itself overnight. This underscores the absolute necessity of disabling automatic updates before and after downgrading.
Here’s an interesting, real-world-style review about downgrading the firmware on an , based on common experiences from tech forums and user communities. This is the most straightforward method if you
HP printers have built-in blocks to prevent older software from overwriting newer software. You must bypass this lock using the printer’s Service Menu.
Disables the software locks that reject third-party ink.
The is a workhorse, known for its speed and print quality. However, HP often releases firmware updates designed to block third-party or remanufactured ink cartridges, leading to the dreaded "Cartridge Problem" or "Ink System Failure" error messages.
After the downgrade completes: