Warning—Potential Damage: Do not downgrade firmware, since returning the device's full compliment of features and functionality requires a multi-step process and likely requires contacting the solutions support team.
If necessary, and only as a last resort, if you are required to downgrade firmware, then you must follow this prelist and summary of steps to recover existing solution (apps) and configuration settings.
Before you begin
Create a list of all apps that are not pre-installed at the factory.
Capture all configuration settings for apps, e-mail, fax, copy, print, network, and security functions.
Capture all user-defined shortcuts, profiles, and destinations.
Procedure: Downgrading firmware and sanitizing
Downgrade firmware to the previous EC revision of firmware.
Clear cache in the browser used to access the printer Embedded Web Server (EWS) page.
After the printer returns to a ‘Ready’ state, access the printer EWS; for example, http://printer's_IP_address.
Navigate to Device > Maintenance.
Select the following under Erase Printer Memory options:
- Sanitize all information on non-volatile memory.
- Start initial setup wizard.
- Erase all printer and network settings.
- Erase all apps and app settings.
- Erase all shortcuts and shortcut settings.
Reinstalling and activating apps
Upon completion, follow the steps in the setup wizard. Reacquire and reinstall all lost apps, licenses, certificates, and re-configure all user-defined settings.
You need apps specific to your code level since apps are code-level dependent.