On your phone’s "Welcome" or "WiFi" screen, tap Emergency Call and dial *#0*# . This should open the hardware diagnostic menu.
Unlike complex command-line tools, it typically offers a simple "point-and-click" dashboard. G-st Samsung Unlock Tool
Unlocking screen locks or performing factory resets will permanently erase all data on the device (photos, contacts, apps). On your phone’s "Welcome" or "WiFi" screen, tap