OK here's the thing. Let's say I just have a 10% left of battery and need to be sure the phone's gonna live for at least 4 more hours. First thing I'd do is turn LTE off so it switches to 3G. Before LTE this same button allowed the user to turn 3G off so it would be just using 2G. (GPRS or EDGE that is). Any way to turn both LTE and 3G off? (So I could save even more battery). Thanks! P.S: Pics added of both options.