Play 4K YouTube Videos on Android

So we have these impressive ultra-high resolution smartphones, yet we still can’t seem to play 4k youtube videos on Android. Some devices can’t even play 1440p YouTube videos despite having the appropriate screen resolution. Luckily, there is a simple trick that you can do to get a higher resolution format via the YouTube app on your phone, even if your screen resolution is not 4k. Essentially, we are going to add a line to the build prop that “tricks” the YouTube app into thinking you have a different display size.