Towards the end of last month, NVIDIA rolled out SHIELD Software Experience 8.2 with several improvements for its SHIELD TV lineup of devices. The update introduced enhancements for the AI upscaler feature on the 2019 SHIELD TVs and new customization options for the SHIELD remote's menu button, along with improved IR and CEC volume control support. But while the update brings a couple of new features to NVIDIA's Android TV boxes, it's still based on the older Android 9 Pie release. Thankfully, XDA Recognized Developer Steel01 has now released an unofficial build of LineageOS 17.1 based on Android 10 for the NVIDIA SHIELD TV lineup, if you're hoping to try a newer OS version.

NVIDIA SHIELD TV Forums

The unofficial LineageOS 17.1 build for NVIDIA Shield TVs allows users to run a heavily customizable, near-stock Android 10 experience on their Android TV boxes. If you're interested in trying out the build on your NVIDIA SHIELD TV, you can download the installation package from the forum thread linked below. However, before you go ahead and flash the build, do note that it's a very early release and you may experience several issues while using it on your device.

Steel01 notes that in its current form, the LineageOS 17.1 build has all the issues that affect the existing LineageOS 16 build for the devices, including gamma problems that result in washed-out colors and a bug that disables audio if the device goes to sleep with the screensaver turned on. While the developer has shared an easy workaround for the second issue, there's currently no fix for the gamma problems affecting the build. On top of that, the build doesn't come with Google apps pre-installed, so you'll have to flash the OpenGApps TVMini package separately in order to get access to Google apps on your NVIDIA SHIELD TV. The build is compatible with all versions of NVIDIA's SHIELD TVs.

Download Unofficial LineageOS 17.1 for the NVIDIA SHIELD TVs