Samsung Tool Pro program allows you to SW update/change, full factory reset, switch phone to download mode, read/write calibration data files, direct unlock/read codes, FRP remove, repair, SN, DRK, Bluetooth, etc. for 95% Samsung phones. Originally, this program was available for Z3X box or Z3X Dongle. But, now you can use the Samsung Tool Pro program without a Z3X box or Z3X Dongle on your 32-64-bit operating system of Windows 7 SP1, Windows 8.1, or Windows 10.