Install Developer Preview Android 8.1 OREO Firmware On Razer Phone, it brings the latest February security patches. if you want Razer Phone Android Oreo update file then follow this post.
Install Android 8.1 Global Beta MIUI 9 OREO On Redmi Note 5 Pro, This is leaked Global beta you can use this ROM on any variant Redmi Note 5 Pro. Here you will find all latest MiUI 9 ROM.
Install and Update Essential PH-1 Android 8.1 OREO Firmware, The update comes with latest February 2018 security patch. Also improvement Performance then before and Photos App crashing, battery drain issue fixed.