I would like to start off by saying that i dont care about any warranty or any such issues. I had bought a S4 in US which i brought to India without ever activating on T Mobile network. This means that on contacting T Mobile, they are unable to send me any activation code which could SIM Unlock my device.
So now my only problem is to make my device usable. I see two options:
a) SIM Unlock
b) Complete removal of firmware and install some custom ROM, bootloader and other components to get rid of T mobile network
Problem is that i am a newbie and couldnt find any thread that could help me. MY device is updated to the latest version i.e. i am on 4.4.2 with baseband as M919UVUF9B4 and knox bootloader
Can someone help me out. I have already tried rooting the device and trying some apps which suggested that would help me unlock my device but none of them worked..