If you are specifically looking for a version of Android 7.1.2 that "works" on this device, you must look into rather than official stock firmware. Stock Firmware (Official) :
If you are encountering a specific error code during installation or need help identifying your exact model variant, let me know! I can help you or walk you through checking your device partition layout . Share public link oppo f1s firmware download 712 work
To clarify, the (A1601) does not officially support Android 7.1.2 (Nougat) or newer versions. The highest official software update released for this model is Android 6.0 Marshmallow . If you are specifically looking for a version of Android 7
Oppo F1s (A1601) does not have an official Android 7.1.2 (Nougat) firmware release. The device officially launched with Android 5.1 (Lollipop) and was later upgradable to Android 6.0 (Marshmallow) Firmware Status Report Official Limits : Oppo has confirmed that the Share public link To clarify, the (A1601) does
Once you have successfully flashed your "oppo f1s firmware download 712 work" file, your phone will be as stable and clean as the day you bought it.