Samsung Galaxy S3 flash done.. 
FLASH INSTRUCTIONS:
1. Choose correct flash file(s).
2. If you have PIT file chosen, then you must check 'Repartition' option.
3. Check flashing options if needed (Repartition, EFS clear, Boot update).
4. Power on phone in download mode (turn off phone, press vol.down + home + power).
5. Connect phone to PC with USB cable, install drivers if needed.
6. Press 'Flash' button.
Operation: Flash
Selected model: GT-I9300
Software version: 23.4
File analysis... OK
Total file size: 0x5BAF658C (1466 Mb)
Searching USB Flash Interface... detected COM45
Setup connection... OK
Reading PIT from phone... OK
Sending boot.img... OK
Sending cache.img... OK
Sending hidden.img... OK
Sending modem.bin... OK
Sending recovery.img... OK
Sending system.img... OK
Sending tz.img... OK
Sending sboot.bin... OK
Flashing done (time - 00:05:28)
Done with Samsung Tool PRO v.23.4