Currently, there is released by Xiaomi for OPPO devices. Running MIUI 8 on an OPPO F1s requires installing an Unofficial Port created by third-party developers. The most common ports available are based on the MediaTek architecture of the device.
: In TWRP, go to "Wipe" and select "Advanced Wipe." Check System, Data, and Cache (do NOT wipe internal storage if your ROM is saved there).
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