Essential Phone Receives Android P Developer Preview Update. In a recent tweet, Andy Rubin's Essential has announced that the company is releasing an update for the Android P Developer Preview for the Essential PH-1. The latest update, which is being delivered as an OTA package, includes improvements for cellular connectivity and fixes for the device's Bluetooth and Dark Mode. If you haven't installed the Android P developer preview on your Essential PH-1 yet, you can head on to the company's official Android P developer preview page and download it now. However, be aware that the developer preview is not a finished product and you might encounter a number of issues with the ROM. #essentialphones #androidp #google #techqueries @techqueriescs @iamcharanmadhu .