So since 03/29/12, this boot-loop happened to me again today!
I'm in the process of dialing into that *#*#4636#*#* and changing it to CDMA + LTE/EvDo auto...
AFTER I put the sim back in and booted it up, bootloop is gone.... thank goodness!
I dialed up that number again to check the setting, it read CDMA auto (PRL)
I should still change it to CDMA + LTE/EvDo auto right?
I normally use wifi at home, but use 3G when out and about. Im unrooted btw
I find myself not rebooting the phone that much anymore.... scared of this crap!