Microsoft has pushed a new firmware update to Surface Laptop, Laptop 2, Surface Pro 4, Pro 6, and Surface Pro(5th gen). The update brings one important improvement and that is the improvement in battery life. The update brings no new fixes and improvements other than the battery life improvement.

  • Surface Laptop and Laptop 2 users are getting firmware update 145.501.139.0
    Windows Update History Name Device Manager Name
    Surface – Firmware – 145.501.139.0 Surface System Aggregator – Firmware

    • 145.501.139.0 helps improve battery life.
  • Surface Pro 6 users  are getting firmware update 241.1.139.0
    Windows Update History Name Device Manager Name
    Surface – Firmware – 241.1.139.0 Surface System Aggregator – Firmware

    • 241.1.139.0 helps improve battery life.
  • Surface Pro(5th gen) users are getting firmware update 239.2852.257.0
    Windows Update History Name Device Manager Name
    Surface – Firmware – 239.2852.257.0 Surface System Aggregator – Firmware

    • 239.2852.257.0 helps improve battery life.
  • Surface Pro 4 users are getting firmware update 103.2851.256.0
    Surface – Firmware – 103.2851.256.0 Surface Embedded Controller Firmware– Firmware

    • 103.2851.256.0 helps improve battery life.

To download this update, go to Settings -> Update & security -> Windows Update -> Check for Updates.

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