Why haven't my iPhone 4 updated?

Okay so my phone has been off for like two days. People are saying that you can get siri now with the iPhone 4 if you update it. As I recall, if you needed to update your iPhone, you had to go to the settings and it will have a little message. Mine hasn't done it yet so do you have to have your phone turned on in order to get the update.

You can't get siri for the iphone 4.
Anyways, go to:
1. Open the settings App
2. Tap on the "General" tab
3.tap on "Software Update"
4.ont the bottom, tap "download and install".

Hook up to itunes and update.
siri isn't available on the 4 no matter what firmware.
you need to jailbreak it in order to get siri

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