Hp Officejet Pro 8620 Firmware Downgrade New !link! May 2026

HP OfficeJet Pro 8620 Firmware Downgrade: Guide for 2026 Downgrading the firmware on your HP OfficeJet Pro 8620 is often necessary when a recent update prevents the use of more affordable third-party or compatible ink cartridges. While HP frequently releases updates that include "dynamic security" to block non-HP chips, rolling back to an older version can restore compatibility and save on printing costs. Why Downgrade Your HP 8620 Firmware?

Downgrading the HP OfficeJet Pro 8620 firmware is a common method to bypass "Dynamic Security" locks that prevent the use of third-party ink cartridges. Because HP often removes older firmware from its official site, you will typically need to source the downgrade file from community archives or third-party providers. HP Support Community Step 1: Disable Automatic Updates hp officejet pro 8620 firmware downgrade new

By locking out these updates, you prevent the printer from automatically re-applying "Dynamic Security" patches that block the use of non-HP or refilled ink cartridges. Key Benefits of the Downgrade Feature Cartridge Freedom HP OfficeJet Pro 8620 Firmware Downgrade: Guide for

To prevent the printer from automatically re-updating to the version that blocks your ink, you must turn off the auto-update feature: HP Printer Firmware Downgrade Guide: Download Link Included CompAndSave Insert the USB drive into the port on

Backup settings

Insert the USB drive into the port on the front of the printer.
The printer will read the 8600_firmware.bdl file automatically.
Do not turn off the printer for 15 minutes. The screen will go blank and reboot twice.

Format a USB flash drive (2GB to 8GB, FAT32 file system).
Create a folder on the USB drive named: HP_Update
Copy the ojpro_8620_FDP32A.pkg file into that folder.
Rename the file exactly to: OJ8620_Update.pkg

Method C: Physical – Disable WiFi and use USB Only

On the printer display, swipe down and select Setup (gear icon). Go to Printer Maintenance > Update the Printer. Select Printer Update Options and choose Allow Downgrade. Set Allow Updates to Yes.