The update-firmware command is available to update firmware on the node. The command is used to preload the correct firmware associated with each SIM's wireless service provider onto the cellular modem for those node variants that require firmware updates to operate in that service provider network.
For some node variants, the firmware is updated for each SIM. For other node variants, the firmware is updated for the radio and the SIMs use the same version. There are two forms of the update-firmware command to address both cases:
tools>perform>mda 1/1>cellular>update-firmware firmware-file sim 1 | 2
This form of the command is used for node variants that require the firmware to be updated for each SIM. In a dual SIM deployment, the command must be run twice, once for each SIM. For example, a node could have an ATT SIM installed in SIM slot 1 and a VZW SIM installed in SIM slot 2. The command is used to ensure that ATT-supported firmware is loaded for SIM 1 operation and that VZW-supported firmware is loaded for SIM 2 operation. Depending on which SIM is active based on the active-sim command, the corresponding radio firmware for that carrier SIM is used by the radio. If an automatic failover occurs, the associated firmware for the new SIM is used by the radio to establish service using the new SIM.
tools>perform>mda 1/1>cellular update-firmware firmware-file
This form of the command is used for node variants that do not support firmware updates per SIM. When executed, the command updates the firmware for the radio, and in a dual SIM deployment, both SIMs use the same version of the firmware.
For more information about using the command, see the update-firmware command description in the Interface command reference chapter.
By default, the firmware that is shipped with the node is used for both SIM 1 and SIM 2 when either SIM is active and no other firmware is specified for that SIM. See the 7705 SAR-Hm and SAR-Hmc Software Release Notes for information about the node variants that require firmware updates to operate in a particular service provider network and for information about the firmware that must be used when operating on wireless carriers that require specific firmware.