IPhone will still seek 2 G frequencies when 2 G becomes off

I bought an iPhone 4 because I got a text saying that 2G stops soon. I know that iPhone 4 uses 2 G and 3 G, so the phone will use extra battery to find services of the 2 G at any time? If so, what can I do?

I don't worry about this.  I suspect that, whenever it happens, an IOS update will be issued.

Tags: iPhone

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