Help Firmware issue


So what happened is my phone had viruses and was really slow, so i gave it to someone to fix it, He told me you should download the firmware now, So i came back home it said like that:

"Firmware upgrade encountered an issue, Please select recovery mode in Kies & try again."

I went to kies and chose recovery mode and it started installing. when it did reach %100 it gave another progress bar, but it didn't move it was stuck at %0, it gave me unplug the phone and plug it again and try again, did it, didn't work, Searched for tutorials and i found something called "Odin3" I Did download it, And i got the PDA File (GT-I9300, Right PDA File) tried it, it was booting, and it failed (Last version 3.10.7) <0 Succeed, 1 Fails>, Tried a PIT File, Ended up with a fail too. Can someone help me?

Manufacturer: Samsung
Model: GT-I9300
Software: Can't remember.
Specifics of the problem: Can't use mobile
Specify if the phone is rooted: Nope.

(PS: I Did Use ODIN3 And Kies In 'DOWNLOAD MODE')