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    Note:
    A    fter upgrading GXV34xx to firmware 1.0.3.4 or higher version, downgrading to firmware lower than 1.0.3.4 is not allowed.

    GXV3450 1.0.3.11: Release Notes    Download Firmware

    GXV3480 1.0.3.11: Release Notes    Download Firmware

    GXV3470 1.0.3.4:   Release Notes    Download Firmware


    HTTP Firmware upgrade path for BETA release is:

    firmware.grandstream.com/BETA