Here you can learn How to flash Samsung Galaxy phones Stock Firmware (4 files) using the Odin Downloader Windows Application for Computer.
Before Flashing Requirements: You need to have Windows PC and Samsung Phone to follow the below instructions.
How to Install Samsung Stock Firmware (4 files)
Step no 1: Download & install the latest Samsung USB Driver on your computer or Laptop (if USB Driver is already installed on your PC then SKIP this step).
Step no 2: Download & extract Odin Downloader on your PC or Laptop (if Odin Downloader Already Installed then SKIP this step).
Step no 3: Download & extract Stock Firmware (4 files) on your computer or PC.
Step no 4: Switch Off your Samsung Phone.
Step no 5: Now, Reboot your Device into the Download Mode. By pressing: Power + Home + Volume Down Button at the same time for 8 to 10 seconds.
Step no 6: Once your Device booted into download mode, you will able to see the Warning Triangle on your Samsung Device screen. Now, you want to press the Volume UP Button to continue.
Step no 7: Start The Odin Downloader.
Step no 8: Once Odin Downloader is Started, you need to connect your Device to the PC using the USB Data cable.
Step no 9: Once your Phone is connected, Odin will automatically detect it & you will be able to see Added Window in Odin Log area.
Step no 10: Now, Press The BL button option & select the BL file from your firmware folder.
Step no 11: Now, Press the AP button and choose the AP file.
Step no 12: Now, Press the CP button & select the CP file.
Step no 13: Now, Press the CSC button & Select the CSC file.
Step no 14: Now, Click on Start button option to Start the flashing process. Installation Process may take more than 5 to 8 minutes to complete.
Step no 15: Once flashing procedure is finished, you will be able to see the Green Pass Pop-up window in Odin. Now, disconnect your phone from the computer.
Step no 16: Now, Reboot to system and Enjoy Latest Firmware version (ignore if your device is already started).