A: No. You must unroot your device and flash the stock recovery first. A rooted phone will fail the signature verification.
A: Yes. The CPH1509_11_A.30 build added enhanced VoLTE stability for Indian carriers. oppo f3 nougat 711 official update download hot
A: No. Oppo officially stopped support at Nougat 7.1.1. This is the final firmware. oppo f3 nougat 711 official update download hot