How to Flash Custom ROM on Samsung Galaxy J5 Pro Android 9 Pie PrometheusOneUI V1.0. This J5 Pro Custom ROM is a full Samsung OneUI port with Android 9 Pie. Prometheus OneUI Rom For Galaxy J5 Pro / J7 Pro 2017 ONLY FOR J530X/J730X. It works for SM-J530X ( SM-J530G, SM-J530F and SM-J530Y ). To • Read More »