Provides restrictions for upgrading cellular modem firmware on devices. These guidelines ensure compatibility and prevent potential upgrade failures during the firmware management process.
Do not change the filename of a firmware upgrade file after downloading it from Cisco.com, as the device uses the filename to determine the relevance of the file.
Cisco SD-WAN Manager only supports upgrading the currently active firmware type.
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A device may have multiple firmware types, such as generic and carrier-specific versions.
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Only one firmware type can be active at a given time, and Cisco SD-WAN Manager upgrades only the active one.
Firmware downgrade is not supported by Cisco SD-WAN Manager .
The P-LTE-450 firmware upgrade will not start if the device is turned off or unreachable.