The Oppo F1s (model number A1601) was a landmark device for the Chinese manufacturer, celebrated for its flagship-grade 16MP selfie camera and premium metal unibody design. However, beneath the sleek exterior lies a critical technical detail that every user, repair technician, or ROM developer must understand: processor variants.
or MT6750 chipset. Flashing or updating the firmware on this device is a common procedure used to fix software issues like boot loops ("hang on logo"), system lag, or "dead" devices following a failed update. Firmware Specifications MediaTek MT6755 (28 nm) or MT6750. Operating System: Oppo F1s Mt6755 Firmware
Cause: Wrong drivers or USB port.
Fix: Use USB 2.0 port (not 3.0), reinstall MTK drivers, try a different cable. The Ultimate Guide to Oppo F1s MT6755 Firmware: