- First, download to your PC: Odin3 latest version , Firmware, Samsung Kies and Samsung Drivers.
Samsung Kies
Odin3 latest version
Samsung Drivers - Next turn off your device and then press and hold the Volume down key , Power button and Home key.

- Then press Volume up key and connect your device to PC using USB cable.

- Then open Odin3.

- Next select the order of the files for the firmware: BL , AP ,CP, CSP.

- Finally click "Start".

- That’s all! Within a few minutes, the latest Stock Firmware update will be installed on your phone.