For extreme performance, uninstall Google Play Services and install MicroG – an open-source reimplementation. This reduces RAM usage by another 150MB and improves privacy.

Older devices running modern community software require specific configurations to maintain peak performance.

While the manufacturer discontinued official software development for this device years ago, the custom ROM community provides several stable, highly optimized Marshmallow alternatives. These aftermarket builds breathe new life into the aging smartphone by improving memory management, enhancing battery life, and providing access to modern application permissions. Custom ROM Options for OPPO A37f (Android 6.0)

Note: The first boot after flashing a new ROM can take anywhere from 5 to 10 minutes. Do not interrupt the device while it initializes the new Android 6.0 system architecture. Troubleshooting Common Issues

Significantly improves standby battery life by putting the phone into a deep sleep when idle.

Return to the main menu, select Install , navigate to your external microSD card, select the ROM zip file, and swipe to confirm flash.

Back up all photos, contacts, and personal files. Flashing will completely wipe your phone's internal storage.