Just updated my RAZR to ICS and really like all the changes, but the 4G drains my battery too quickly...is there a way to turn it off without turning off all data with ICS? I've checked the network settings and there is a Global, CDMA/LTE, and GSM/UMTS. The Global and CDMA/LTE settings both run 4G and the GSM just doesn't work. Any suggestions?