The following updates are available for all Surface Book 2 devices running Windows 10 April 2018 Update, version 1803 or greater:
Windows Update History Name
Device Manager Name
Surface – System – 1.75.139.0
Surface Base 2 Firmware Update – Firmware
1.75.139.0 improves battery stability.
Surface – Firmware – 182.1004.139.0
Surface System Aggregator – Firmware
182.1004.139.0 resolves an issue where the CPU will throttle down to .4GHz, and improves battery stability.
Surface – Firmware – 389.2837.768.0
Surface UEFI – Firmware
389.2837.768.0 resolves an issue where the display adapter disappears from Device Manager.
Known issues and additional information about Surface Book 2
We are listening. Quality is a top priority, and we want to keep you informed about issues impacting customers. The following is a known issue:
Symptom
Workaround
The dGPU may occasionally disappear from device manager on Surface Book 2 with dGPU.
Microsoft has identified a compatibility issue on some Surface Book 2 devices configured with Nvidia discrete graphics processing unit (dGPU). After updating to Windows 10 May 2019 Update (version 1903), some apps or games that need to perform graphics intensive operations may close or fail to open.
To safeguard your update experience, we have applied a compatibility hold on Surface Book 2 devices with Nvidia dGPUs, preventing them from being offered the Windows 10 May 2019 Update (version 1903), until this issue is resolved.
Affected platforms:
Client: Windows 10 May 2019 Update (version 1903)
Workaround: To mitigate the issue, if you are already on Windows 10 May 2019 Update (version 1903), you can restart the device or select the Scan for hardware changes button in the Action menu or on the toolbar in Device Manager.
Note We recommend that you do not attempt to manually update using the Update now button or the Media Creation Tool until this issue has been resolved.
Next steps: We are working on a resolution and will provide an update in an upcoming release.
