I tried installed the apk from @aiemassfiria in his original thread (https://forum.xda-developers.com/and...-1-l1-t3535349) but it doesn't work on my Mi projector. So I modded the apk myself (this only apply for Widevine L1 device)
Here is the latest apk (Netflix v4.16.3)
If you want to patch yourself, here is the guide:
Make sure you have `patch` installed (built-in in macOS, linux. Not sure about Windows)
Basically, find and replace all isDeviceHd(), isWidevineL1Enabled() etc. to true.
Hope it would work for you