Default [Q] Odin and microphone fail

Hi, I need some help with my gt-n7100 note. I tried to update it with kies but got stuck on download I tried with odin with stock firmware both 4.3 and 4.1.1 downloaded from sammobile and it fails at system.img. so I read here on xda to flash with a custome recovery which I did but now my microphone is not working. need help on how to fix the microphone or overcome the odin system.img failure. Thank you.