3G vs 4G and S Voice Prompts

stuka75

Active member
Dec 10, 2011
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I am currently on 3G in my area and supposedly will update to 4g in coming months. How can I tell if and when 4g is availalable? Will I need to do anything at my end to make the change.
In addition I swear that using s-voice via bluetooth I could hear voice prompts thru the earpiece, but since the update, I no longer hear them, just the initial and final ping of s voice prompt. Would appreciate other users input.
Thanks