The downgrade movement is a direct manifestation of the philosophy. Owners argue that once they have purchased the hardware, they own it entirely—including the right to run whatever software (firmware) they choose. Downgrading is not piracy; it is a rollback to a previously functional state. In fact, several class-action lawsuits (e.g., In re: HP Printer Firmware Update Litigation , 2020) have alleged that HP’s forced updates constitute “bricking” and unfair business practices. While HP has settled some cases, paying small reimbursements to affected users, the fundamental firmware lock remains.
A successful downgrade means nothing if the printer immediately downloads the latest update again. You must permanently disable automatic updates using the printer's control panel.
Follow the on-screen prompts to start the installation. The printer might restart multiple times. hp officejet pro 8620 firmware downgrade better
One user on the HP Community described their nightmare after installing firmware version FDP1CN2022AR :
The process is fraught with peril. First, there is a genuine risk of the printer. If power is lost during the 8–10 minute flashing window, the bootloader may become corrupted, turning the printer into a paperweight. Second, HP has implemented anti-downgrade counters in some late 1830A versions. If a printer has been updated past a certain threshold (e.g., to 1860A), the bootloader refuses to accept any firmware older than the installed version, rendering downgrade impossible without a JTAG hardware programmer—a tool far beyond most consumers. The downgrade movement is a direct manifestation of
uses "Dynamic Security," a feature that periodically checks for unauthorized chips. Downgrading to a "pre-dynamic security" version can permanently eliminate this issue. 4. Improve Printer Performance
While downgrading is better for ink freedom, it is not without risks: In fact, several class-action lawsuits (e
: Reverting removes error screens like "Cartridge Problem," "Missing or Damaged Cartridge," or "Incompatible Cartridge" caused by algorithmic ink locking.