How long is it supposed to take? It has been more than 10 minutes unlocking bootloader and nothing happens.



Edit: For those who got stuck on "Unlocking bootloader" while in Fastboot: Keep your device connected to the PC. Open device manager in Windows, you will find the Android Device with the warning symbol. Right click on it and select update driver. Then select Search for drivers in this PC. Then select choose from a list of drivers available. On the left side of the list search for Samsung and on the right side of the list choose Samsung ADB device and apply. Restart the device and the program on your PC and start the install process again.