Factory Images for Nexus and Pixel Devices | Google Play services ...
Because Essential PH-1 supports Seamless Updates (A/B partitions), you will need to download two files to install TWRP: a ZIP and an IMG.
Cách cài đặt TWRP Recovery trên Android (không cần root)
How to flash the TWRP recovery to android device whether you have rooted your device. ... The popular custom recovery -- Team Win Recovery Project ( TWRP ), is a touch-based recovery.