A firmware update can add support for additional bands on some models, but not all updates include band changes. To know if a specific update helps, check the release notes for that firmware version and compare the listed supported bands to your SIM bands. If you’re considering updating, test first on a spare unit or in a non-critical environment, back up the current configuration, and ensure the update is approved for your exact model and hardware revision. If you want, share your router model, current firmware version, and the carrier bands, and I’ll help interpret whether an update could enable compatibility and what steps to take.
Public Q&A
Will a firmware update add support for my SIM bands?
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