Event 2007 with the following text indicates a successful update: Firmware update finished. hr=0 DriverTelementry EventCode = 2007. The registry values that indicate the status of firmware updates are unchanged from the previous version of this tool:

This section is optional and provides an overview of how to monitor installation of the firmware update. Verify the new registry key values match the updated registry key values listed in the Versions reference at the end of this document. If the values match, the firmware was updated successfully. If the update is not successful, then event ID 2007 is displayed as an Error event rather than Information. Additionally, the version reported in the Windows Registry won't be current.

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Installing the MSI file might prompt you to restart Surface. However, restarting is not required to perform the update. It adds support for Surface Pro 7 and Surface Laptop 3. Legacy versions Version 2.23.139.0 Release Date: 10 October 2018 Look for the registry keys: Component10CurrentFwVersion and Component20CurrentFwVersion, which refer to the firmware that is currently on the device. When the update is complete, updated DWORD values are displayed in the Windows Registry, corresponding to the current version of the tool. See the Versions reference section in this article for details. For example: