Once you’ve installed your chosen ROM, optimize it further:
Before you begin, ensure you have:
Before trying anything risky, double-check if any minor regional updates are available. You can do this by going to on your phone. If it says you are up to date at version 5.1.1, then no official Marshmallow version exists for your device. 2. Custom ROMs (Unofficial) rom oppo a37f android 60 top
Here’s why: While Resurrection Remix has more features and Slim6 is lighter, LineageOS strikes the perfect balance. It brings the core benefits of Android 6.0 (permissions, Doze, reliability) without overburdening the aging Snapdragon 410. Your Oppo A37f will feel like a brand new mid-range device from 2018. Once you’ve installed your chosen ROM, optimize it