Note: Custom ROMs may have bugs, such as non-working cameras, Wi-Fi issues, or battery drain.

is typically based on Android 6.0 or 7.x in some regions. To ensure you have the latest official version: On your phone: Software Updates to see if any OTA (Over-the-Air) updates are available. Manual Download: You can check the OPPO Global ROM page or use the OPPO System Upgrade Tool