MultiPlus, cannot do remote firmware updates, but configuration is possible using Remote VE,Configure (at the bottom of the Devices page on VRM).
MPPT and BMV (VE.Direct devices) can do remote firmware updates via VRM.
On VRM, select the devices page and at the bottom will be the option for "Firmware Update"
Make sure that Two Way Communication with VRM is enabled on the Venus GX.
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