Rom Oppo A37f Android 60 Top -

originally launched with Android 5.1 (Lollipop) based on ColorOS 3.0. While there is no widely available "official" over-the-air (OTA) update to Android 6.0 (Marshmallow)

Step 4: Wipe Partitions

From TWRP main menu:

App Permissions: Gives you granular control to accept or deny individual app permissions (like camera or location) when you first use them, rather than all at once during installation. rom oppo a37f android 60 top

MIUI 8 (Android 6.0 based): Popularly ported to the A37f, it includes features like Dual Apps (running two accounts of the same app), Quick Ball for navigation shortcuts, and an improved gallery with cloud sync. originally launched with Android 5

3. Use Greenify or Servicely

Even a top ROM can suffer from battery drain. Greenify (root mode) hibernates background apps. With Android 6.0’s Doze mode, this combo yields 6+ hours SOT on the A37f. Enable Developer Options (tap Build Number 7 times)