On both Surface Pro 4 and Surface Book, Microsoft is addressing various flickering issues when using Microsoft Edge and other applications with an update to the UEFI and HD Graphics 520. There is also a fix for the an auto-rotate problem after resuming from hibernation and detaching the keyboard. In addition, a new set of drivers for the Surface Camera significantly improves the stability of Windows Hello, and the front and rear cameras. Also, users will see a more specific Windows Hello driver update (v1.0.45.0) that further improves Windows Hello stability. Specific to Surface Book, the April 2016 firmware update brings an update for the NVIDIA GeForce GPU driver update (v10.18.13.6200) to add support for some games. Specific to Surface Pro 4, a new Surface CoSAR driver update (v1.0.47.0) is rolling out to add support for additional Wi-Fi signal algorithms to improve signal strength with some 5-GHz access points. On Surface Pro 3, Surface Pro 4, and Surface Book, the software giant is also releasing updates for the Surface Dock to improve stability and compatibility with external monitors and passive video adapters. If you want to learn more about all the specific changelogs, you can visit the Microsoft Update History website for Surface Book, Surface Pro 4, and Surface Pro 3. The April 2016 firmware update is rolling out immediately to the devices. The updates will download and install automatically, but you can always go to Settings > Update & security > Windows Update and click the Check for updates button to force the update. If you own any of the Surface devices that are getting the new updates, let us know if you notice any improvements.  All content on this site is provided with no warranties, express or implied. Use any information at your own risk. Always backup of your device and files before making any changes. Privacy policy info.