Simply download these Two Files - ODIN Software and Original Firmware.
(Choose your model and region and download original firmware whatever version you like for e.g 2.3.3)
Download ODIN v1.85 - Download (Download and Extract files in a folder)
Follow Steps by step Procedure by iPad Repair Hong Kong to FLASH the Firmware of your Samsung Phone with Odin.
Warning: Please ensure that KIES is closed and not running in the system tray! Kies doesn't like Odin.
1. Just download the firmware version you want from the above link and extract the .tar or .tar.md5 file in the archive and save it somewhere.
2. Reboot your phone to download mode. To do so simply shut down the device. After it shuts down completely then Hold Down the Volume Down key+ Home button + press the power button.