Microsoft has released the September 2020 firmware update for the Surface Laptop. The update includes no new features, as you’d expect from a firmware update. But the update does bring improvements — it improves the battery smart charging reliability. Beyond that, the update includes no bug fixes and performance improvements. You can read the full official changelog below.
|Surface – Firmware – 145.603.139.0||Surface System Aggregator – Firmware||145.603.139.0
To download and install Microsoft’s latest September firmware update on your Surface Laptop, you can head over to Windows Settings> Update & Security> Check for updates.