To ensure safety, it is best to download from the official community source:

Improper use or disconnecting during the process can permanently damage the device. User Verdict

Please let me know if you need any changes.

button in the tool. Accept the USB debugging prompt on your phone when it appears. How To Change CSC Code On Samsung Phones with SamFW

: Ensure you have Samsung USB Drivers installed on your PC so the tool can recognize your phone.