These are the instructions to Flash firmware flash file Stock Rom or any custom rom using Smart Phone Flash Tool (SPD Upgrade Tool or SPD Research Tool ) on any Windows Computer.
Requirements: Your Android Smartphone should have at least 40-50 percent of Battery to perform the Flashing Process.
Flash Firmware Stock Rom using Smart Phone Flash Tool (SPD Upgrade Tool or SPD Research Tool )
Step 1: Download and install Android Smartphone USB Driver on your Computer. Skip this step if Android Smartphone USB Drivers are already installed on your computer.
Step 2: Power Off your Android Smartphone and remove the Battery (if it is removable).
Step 3: Download the Firmware Stock Rom or Custom Rom that you want to Flash on your Android Smartphone and extract it on your Computer.
Step 4: Download SPD Upgrade Tool or SPD Research Tool and extract on your Computer. After extracting, you will be able to see the following files:
Step 5: Now, open ResearchDownload.exe.
Step 6: Once Spreadtrum Research Tool is launched, connect your Android device to the Computer (make sure your device is switched off).
Step 7: Once your android Smartphone is connected successfully to the Computer, click on the Load Packed Button and add the .pac file (stock from, which comes as .pac).
Step 8: Now, Locate the PAC File (you will find the PAC file in the Firmware folder).
Step 7: Once you have successfully added the Pac file in Spreadtrum Upgrade Tool, click on the Start Downloading button to begin the flashing.
Step 8: During the flashing process, your device will restart automatically. Once flashing is completed, you will see the Green Passed Message in Spreadtrum Research Tool.
Step 9: Now you have successfully flashed your Android Device using Spreadtrum Research Tool. Once your Android Device is successfully restarted, Go to Settings > About Phone > Check firmware.
HOW DO YOU DOWNLOAD SPD ResearchDownload Tool?
Just the download link & button is given below. The file will be downloaded only when you touch it—download SP Flash Tool with 100% download speed from google drive.