Boot into (usually achieved by pressing and holding the Volume Down + Keypad Center/OK button + Power button simultaneously).
You can safely disconnect the USB cable from your phone once the boot animation starts. samsung schw279 flash file
Swap the USB cable or try a different USB port on your PC (prefer USB 2.0 ports over USB 3.0). Boot into (usually achieved by pressing and holding
Download and install Samsung USB Drivers on your computer to ensure the PC recognizes the phone. samsung schw279 flash file
Boot into (usually achieved by pressing and holding the Volume Down + Keypad Center/OK button + Power button simultaneously).
You can safely disconnect the USB cable from your phone once the boot animation starts.
Swap the USB cable or try a different USB port on your PC (prefer USB 2.0 ports over USB 3.0).
Download and install Samsung USB Drivers on your computer to ensure the PC recognizes the phone.