Ensure the phone has at least 60% battery to avoid sudden shutdowns.
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Return to the main menu and tap Install . Navigate to your MicroSD card and select your downloaded Android 7.1.2 custom ROM .zip file. Swipe to confirm the flash. oppo f1s firmware download 712 work
If you mistakenly formatted the device, you will need to restore your NVRAM/NVDATA partitions using specialized MTK repair tools to bring back your cellular connectivity. Ensure the phone has at least 60% battery
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) : Swipe to confirm the flash
: Always download firmware from reputable sources. Flashing the wrong firmware, or an unofficial one, can permanently damage your device (a "hard brick").
Turn off your device and hold the Volume Down + Power buttons until the TWRP screen appears.
