OPPO F1s (A1601) Go to product viewer dialog for this item. does not have an official Android 7.1.2 firmware update. According to GSMArena and OPPO Community experts, the device officially supports Android 5.1 (Lollipop), with some regions receiving an upgrade to Android 6.0 (Marshmallow).
100%. A green checkmark. "Download OK."
If the PC doesn't see the phone, re-install the MTK VCOM drivers and try a different USB port. oppo f1s firmware download 712 work
by Oppo. Any "7.1.2" firmware found online is likely a custom ROM (like LineageOS) or a port. Official Stock ROMs: Finding the "Work" Version OPPO F1s (A1601) Go
Click the "Download" button at the top of the tool. Connect Device: Power off your OPPO F1s completely. Hold the Volume Up and Volume Down buttons simultaneously. Verified, working firmware links