: Power off and hold Volume Down + Power (common for many devices) to enter TWRP Recovery .
: Open GApps are version-specific (e.g., 6.0, 7.1). Ensure your 2016 zip matches your ROM's Android version. Download open gapps arm pico 20161228 zip
: Navigate to the Open GApps SourceForge Files section. : Power off and hold Volume Down +