Device recovery
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.
Downgrading firmware
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
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Create a list of all apps that are not pre-installed at the factory.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Capture all configuration settings for apps, e-mail, fax, copy, print, network, and security functions.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Capture all user-defined shortcuts, profiles, and destinations.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Downgrade firmware to the previous EC revision of firmware.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Clear cache in the browser used to access the printer Embedded Web Server (EWS) page.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
After the printer returns to a ‘Ready’ state, access the printer EWS; for example, http://printer's_IP_address.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Navigate to Device > Maintenance.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
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.
![](https://publications.lexmark.com/media/ids_assets/images/transparent.png)
Click Start.
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.
Note: You need apps specific to your code level since apps are code-level dependent.