Oppo F1s Firmware Download 'link' 7-1-2 Here

Copy the ROM.zip and GApps.zip to your phone’s internal storage or microSD card.

Download MTK USB Drivers (v4.0 or newer) and SP Flash Tool v5.1924 for MediaTek-based Oppo F1s. Oppo F1s Firmware Download 7-1-2

Because there is no official 7.1.2 release from Oppo, you typically have two paths: 1. Official Software (Android 5.1 or 6.0) Copy the ROM