Having trouble after unlock. I unlocked using anysim, and used putty to reflash the baseband files after I got a "No Service" in the upper left hand corner. Now every so often I get the No Service again, and I go between ATT and Off Network. I am running an ATT SIM, and I have used paycay and did a fresh install of the firmware to no avail. Usually happens in the same spot, the will continue until I get home. HELP!