HP CF500 Series Firmware Downgrade Method
- HP
- 08 Dec, 2020
HP CF500 Series Firmware Downgrade MethodYou may get "Supply Problem" after replacing your toner cartridges.This is due to the printer firmware by HP to version 2020 1021 series.By watching the following video you can downgrade your printer firmware back to the older version. Therefore you are able to use compatible cartridges again.