Switch to the dark mode that's kinder on your eyes at night time.

Switch to the light mode that's kinder on your eyes at day time.

Switch to the dark mode that's kinder on your eyes at night time.

Switch to the light mode that's kinder on your eyes at day time.

Firmware Oppo F1s A1601 ((better)) -

The remains a popular budget-friendly device, known for its selfie camera and solid build. However, like any smartphone, it may encounter software issues such as boot loops, IMEI loss, or sluggish performance. In many cases, flashing the correct firmware (stock ROM) is the solution.

Load the "Scatter file" from your firmware folder into the SP Flash Tool . firmware oppo f1s a1601