OPPO A16s CPH2271 MDM Sim Unlock Firmware Free Download

• Download and install Mediatek Driver Autoinstaller on your computer (if the Mediatek Driver is already installed, skip this step).
• Download the Stock ROM (firmware) of your Mediatek Device and extract it on the computer (you can find firmware from above link).
• Download and extract SP Flash Tool on the computer. Once extracted, you will see the following files:
  • SmartPhone Flash Tool Extracted Files
• Open flash_tool.exe to launch the tool.
• Once SP Flash Tool is launched, click on the Scatter-Loading Button.
• Locate and select the Scatter File (found in the Stock ROM of your device) and click on the Open button.
• Untick the Preloader option (flashing the preloader.bin can brick the device).
• Click on the Download Button to begin the flashing process.
• Connect your Mediatek Device to the computer using the USB cable (make sure it is powered off). After connecting, press the Volume Down or Volume Up key so that SmartPhone Flash Tool can detect the device.
• Once the computer detects your device, the flashing process will start automatically.
• Once the flashing process is completed, a Green Ring will appear at the end.
• Close the Flash Tool on the computer and disconnect the device.
• Congratulations! You have successfully learned to flash or install Stock Firmware on Mediatek Devices.

Note: need to bypass auth for starting the flashing process, also install LiBUSB Drivers.