I bought an S3 about a week ago and almost immediately starting experiencing problems with it. MTP would stop, android.core.process would stop, built-in camera function would stop (eventhough camera apps from store work perfectly), android.media.process would stop, MyFiles would stop.....the list goes on and on. After a frustrating ordeal, I got the phone replaced but they left me with the old battery. As soon as I powered up the unit, the old "Unfortunately...such and such process has stopped" messages reappeared. We are talking about a new phone with the same problems. I have not attempted any mods in the old phone and the new one is still wrapped in plastic. Could it be due to a faulty battery or is it possible this particular lot of S3s are defective? Has anyone had any similar experiences? Your input would be appreciated.