PSA: Type *#*#4636#*#* into phone keypad to access "Device Info" menu.

I've been using this on my AT&T Note 4 for quite awhile to switch off LTE when I go to bed.

To do that, Tap "Device Info", scroll down a bit and you'll see "Set preferred network type" with a down-pointing caret. To enable LTE, I choose "LTE/GSM auto (PRL), but, overnight, I switch back to "GSM only". I can't say how much battery life, if any, I actually save this way - but I feel better about it.

Also, there's quite a bit of info in the menu.

crp

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