Do not attempt a firmware downgrade over Wi-Fi. A dropped connection can "brick" (permanently disable) your printer.
If you only have a .bdl file:
HP has historically removed features from older printers via firmware updates (such as specific cloud printing functionalities or older scanning protocols) to streamline the code base or enforce obsolescence. hp 6950 downgrade firmware
Do not attempt a firmware downgrade over Wi-Fi. A dropped connection can "brick" (permanently disable) your printer.
If you only have a .bdl file:
HP has historically removed features from older printers via firmware updates (such as specific cloud printing functionalities or older scanning protocols) to streamline the code base or enforce obsolescence.