Here are the details of the Oppo F3 Nougat 7.1 update:
Yes. Since the boot image is modified, Nougat’s verified boot triggers this warning. It does not affect functionality. oppo f3 nougat 711 update download patched
: Some users have reported that the official Android 7.1.1 update for the F3 can be laggy compared to the original Marshmallow firmware. Here are the details of the Oppo F3 Nougat 7