Interesting question, beachn! If I understand correctly, you're trying to see how long it will take to update the software/operating system of an iPhone 4. If that's the case, the during of a software update will depend greatly on the speed of your computer and/or your phone. I've seen the process vary from 4 minutes to an hour. If I did not understand correctly, please describe what you mean by update. Thanks!
Dion M.
VZW Support
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