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Secure Mobile Access 1000 series 12.1.0 firmware provides downgrade capabilities
03/26/2020 
15 People found this article helpful
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Description
The purpose of the new firmware downgrade capability is to permanently "downgrade" an appliance to a different base firmware version therefore it does NOT migrate the existing configuration or save any data / files from the appliance. It is the equivalent of a complete factory reset to an entirely new firmware base. All files and settings stored on the appliance will be permanently overwritten and the appliance will be set to factory defaults.
Resolution
How to perform re-imaging of an appliance:
With the release of firmware version 12.1.0 SonicWall will be shipping new devices with this version. Version 12.1.0 has the capability to re-image a device with any of the supported firmware versions.
To re-image an appliance from 12.1.0 to 11.4.0, the administrator can perform as below:
- Use existing Setup Wizard to base-configure the appliance to where AMC can be accessed.
- Obtain the 11.4.0 "upgrade" (*.bin) file.
- Go to the advanced version of the Maintenance | Reset page (https://:8443/resetConfirm.do?advanced=1)
This feature was implemented to better assist customers while downgrading their appliance firmware version from 12.1.0 to 11.4.0.
For systems running 12.0.1 upgrade the system to 12.1.0 before downgrading to 11.4.0. 12.0.1 was supposed to support this downgrade but 12.0.1 downgrades to 11.4.0 are not recommended.
NOTE: in 11.4.0 the system will have no configuration and will need to be taken thru normal initial configuration.
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YES
NO