I just bought the Mytouch 4G off Ebay for my wife's birthday (unlocked so no contract). I have rooted an LG Optimus T before so I thought I could do the same to this phone. My only problem is that I did not have a sim card in hand so I rooted and upgraded the Royal Ginger Rom without the sim card. Now my phone is working perfectly but there is an error of "no sim card, emergency calls only," even after I insert a sim card that works with another phone. I am running out of ideas, the only thing to try is to somehow load the factory default which I did not back up. At the moment with gfree, s=off, please help :(...