I'm on my 3rd hardware unit. All three drop data. Could it possibly be a problem with the SIM? I'm not even using LTE (battery suck); CMDA. It appears to happen when I get to a low signal, then the bars go white with no 3g or 1x symbol, and won't come back until I reboot. This totally blows. Can I go back to Verizon and give up this phone for good, or am I stuck with this lemon for two years?