While there is no global over-the-air (OTA) update for the to reach Android 7 Nougat, regional firmware releases and custom ROM options exist for users looking to upgrade from the stock Android 6.0 Marshmallow. Official Status and Regional Availability
: Once updated to certain Nougat versions (like CPH1609EX_11_D.01), it is often impossible to downgrade back to Android 6. Security Risks : Many available download links for Android 7 on the oppo f3 android 7 update download
If your phone is still on Android 6.0 and has never been updated: While there is no global over-the-air (OTA) update