So I have the Tmobile variant of the S3 and I have tried everything and spent countless hours trying to fix my problem. My phone will not connect to my computer after I tried with different cables and going through the phone utilities. I also did what other forums said and I had no luck. The binary count is at 10 because I tried to root this phone long time ago and I was unsuccessful. The device is not rooted because I checked if I had root access. The phone will only charge when I connect it to the computer and I need it to update to the stock 4.3 from Tmobile using odin. Any help??
Are you using cables bought with chargers? Or are you using quality "Data Cables"? Also, try different USB ports on the computer. Uninstall and reinstall drivers from Device Manager. If it will charge, but not transfer data, it sounds to me that its either a cable issue, or a driver issue. (Could be a bad port on the phone as well, but this is less likely)
If you are stock, unrooted, can't you just use the software update in settings > about device?
When connected to the computer, what does it say in device manager?
Can you try on a different computer? If it also does not work on another computer, it may be more likely that there is a problem with the port on your phone.
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