Hello fellas! It's my first post here, but I've been a member for quite a while now. Anyway my question is how do I update my Samsung galaxy s3. It's an At&t s3 but I use T-Mobile on it. I'm stuck with the 4.1.1 because I can't update it. Whenever I try it says software update interrupted check again in 48 hours. I did search through the forums about this and someone fixed this by using another sim, I tried that but it didn't work.
A couple things to note, I did root my S3 with the cyanogenmod but I went back to stock rom and did the triangle away. I also unlocked my phone using that dial method. Please help me guys. Thanks!
Oh and here's a picture, the continue update is grayed out.