Hi, I am using Galaxy S3 running on Android 4.1.2. I just can't upload music from my PC (Windows 7 64 bit) to my phone. I have tried everything Kies,MTP,PTP,Media Player Syncing,unistalled and reinstalled USB drivers but nothings seems to work. The funny part is I am able to transfer music from my Phone to my PC very easily, but just can't upload music from my PC To Phone. Its driving me crazy! Please help. Ratish.