HP MFP P57750 firmware – dynamic security
We just discovered this with our HP P57750 printer, so just a little heads up. The printer has a firmware update that we believed to have stopped, and as expected, it disables all non-HP chips, making the printer inoperable.Firmware version: MAHDWOPP1N001.2228B.00
Build Date: 2022-07-06
Release Date: 2022-08-02
Anyone who has been here before will not be surprised by this, but we thought we'd document the actions we've taken to try to remedy the matter thus far (without success):
- Checked for newer firmware to revert the situation.
Result: Nothing newer available (as at 2022-08-29) - Downgrade located:
- hp-downgrade-v4-87x.rar contains:
- Printer P57750dw downgrade to 1829A version
Result: Not compatible to downgrade the latest version so this failed
Net result is that once again HP have blocked legitimate use of purchased hardware and continue getting their wrists slapped in the US and Europe only to go and repeat the whole exercise all over again.
We thought we’d fixed this previously but may not have done so for those reading this whose printer has not already updated the firmware automatically, make sure you shut down automatic updates and/or remove internet access to the printer using your router firewall to stop the printer communicating with anything outside your network.
