I have a Galaxy S3 and 2 days ago I have installed the latest version of Cyanogenmod using Odin but it was not working properly. So I decided to install the Samsung ROM again (V.4.3). While I was installing it, USB disconnected accidentally. I tried again and instaled it. However my phone cannot boot anymore. Samsung logo appears and keep staying on the screen till you disconnect the battery. Then I tried to install the stock 4.1.2 ROM but its the same. I think I am in a big trouble. Can anyone help me?