Hello, I have an unlocked S3 (unbranded from factory). I've been unable to upgrade Android since I bought the phone - it's been stuck at Android 4.0.4. When I try to upgrade it in Kies, I get the "Your device does not support software upgrading via Kies" notification. When I check for updates through the phone's settings, I always get a message saying there are no available updates. I've never done any modifications to my phone. How can I update Android on my phone? I'd appreciate any feedback.