HPM181fw blocked after firmware update

[Thomas_FR74]

Hello

My printer (HP LaserJer pro M181fw) has installed a new firmware that has blocked the printer due to the dynamic security.

What is the process to remove the dynamic security and come back to the old firmware ?

Firmware in the assistance webpage for my printer is not resolving the problem

I don't want to throw away my printer and purchase a new one and for sure of another brand

thanks in advance

thomas

[Thomas_FR74 · Accepted solution]

Hello

I have found this solution on internet that works well for me :

In 20201021 there is no menu to activate or deactivate updates nor downgrades.
I got to downgrade it as follows:
1- Remove all cartridges .
2- Turn on printer
3- wait till message telling there are no cartridges appears
4- Run HP-LaserJet-M180-M181-downgrade.exe
5- When a messages on the computer appears telling that cannot print, do nothing. Don’t click any where.
6- On printer display will appear some messages telling that is “programming”, “Erasing”…
7- Wait till printer reboots.
Now the menu to deactivate new updates appears and can deactivate new updates.

Thanks