Follow these steps to enter Download Mode/Odin Mode
Power off your device
Press and hold Volume Down key, tonic key and Power Key
When your device vibrates, release Power key while keep holding the quantity Down key and residential key
Your device should be automatically recognized by Odin. At the lower-left of the Odin interface, it should show a message that says “Included!“Added!” and within the meantime, you ought to see a light-blue box at the ID: COM section stating “COM:3” (the number depend upon which USB port you’ve got plugged the device cable and is irrelevant).
Click “PDA” or “AP” to feature the tar.md5 file that you “Start”.
Whether it’s “AP” depends on the version of Odin that you simply used. But the md5 file goes to either “AP”.