How to Flash Stock Rom (Firmware) using SP Flash Tool
Here You Will Find the instructions to Flash Firmware or any custom rom using Sp Flash Tool on Windows PC.
Requirements: Your Android phone/tablet must have at-least 50 percent of charge in battery to continue the Flashing Process.
Flash Firmware using (Smart Phone Flash Tool) Sp Flash Tool
Step 2: Power Off your Android Device and Pull the Battery (if removable).
Step 3: Download the Firmware File or Custom Rom that you want to Flash on your Android Device and extract it on your Computer.
Step 4: Download and Extract Latest Smart Phone Flash Tool on Your Computer. After Extracting You see the Following Files in the Extracted Folder:
Step 5: Double click to open Flash_tool.exe (you will find it in extracted folder in Step#4).
Step 6:When Sp Flash Tool is launched, Go to the Download Tab.
Step 7: On Download Tab, click the scatter-loading button.
Step 8: Select the Scatter File (you will find the scatter file in the Firmware Folder).
Step 9: Click on the Download Button to Start the Flash Writing Process.
Step 10: Connect your Android Device to the Computer or Laptop using USB Data Cable (without battery- if removable). while connected the device to the computer or laptop Press Volume Down or Volume Up Button, For Booting your device that computer detect it.
Step 11: When the Flashing process is completed, You will See a Green Ring.
Step 12: Close the Sp Flash Tool Application on your computer or laptop and disconnect your Android device from the computer or laptop.Congrats You are Done, Now your Android Device is successfully upgraded to the Firmware you have Downloaded.
Keep in mind:
[*] The above tutorial only works with the Stock firmware or Custom Rom which comes with the Scatter file in it (basically mediatek devices).
[*] Backup Please: Take a backup of your important data before using the Smart Phone Flash Tool as because during the flashing process your personal data will be removed permanently.
[*] How to Flash IMEI: After flashing the firmware on your Mediatek Device, you need to follow How to Flash IMEI using SN Write Tool to fix the IMEI on your device.