If the phone can still turn on but is acting buggy:
Flashing (especially via SP Flash Tool) will erase all data . firmware oppo f1s a1601
The , famously known as the "Selfie Expert," is a legacy device released in 2016. Its firmware ecosystem is centered around ColorOS , based on Android 5.1 (Lollipop), with a final official upgrade path to Android 6.0 (Marshmallow). 1. Official Firmware Architecture If the phone can still turn on but
Firmware is the software that controls the Oppo F1s (A1601) hardware components, such as the processor, memory, and storage. It's essentially the brain of the device, and updating it can improve performance, fix bugs, and add new features. For a step-by-step visual demonstration of the flashing
For a step-by-step visual demonstration of the flashing process: How To Flash Oppo F1S (A1601) Work YouTube• Oct 17, 2017