Unlocking a Samsung Galaxy sound like a great solution.
I typed the above code and it said cannot read file no such file.
But before that, ensure your phone is rooted; otherwise, this tool will not work on the device.
I have also tested it on Galaxy S3, S2, Note 2 and Note 10.
Getting it unlocked first will bring up the value even more so do consider as well before selling it.
Besides, Samsung Tool also works as a reboot manager app.