In the drop-down menu situated directly above the partition list, select .
Boot your Oppo F1s into Fastboot mode by holding the buttons simultaneously. Connect your phone to your PC using a reliable USB cable.
on the "Choose" button next to the Scatter-loading File field.
Before beginning the installation process, verify that your hardware matches the specifications below and prepare your environment to prevent permanent damage (bricking) to your device. Device Compatibility
Oppo F1s (A1601) officially supports up to Android 6.0 (Marshmallow) . To achieve Android 7.1.2 (Nougat) , you must use a Custom ROM LineageOS 14.1 Prerequisites Backup Data
Flashing firmware modifies system-level software and may void any remaining warranty. Proceed at your own risk. The author and site are not responsible for data loss or hardware damage. Always use official files when possible.
Proceed with caution. Flashing unofficial firmware can brick your device if the wrong version is used for your specific chipset (MT6750 or MT6755). How do I want to upgrade my Oppo F1 s?
: Many modern applications require a minimum runtime environment equivalent to Android 7.0 or higher.
Navigate to your extracted firmware folder, locate, and select the scatter file (it will look like MT6750_Android_scatter.txt ). Step 3: Prepare the Flashing Options
(e.g., LineageOS or Pixel Experience) and not an official Oppo release. OPPO India Community How to Update (Official Method)
Flashing will erase all data, including photos, contacts, and apps.