HT4623 I already have ios 7.0 installed in my iphone 4S. Although the size of ios 7.0.2  shows only a few MB, but when i click update using from my itunes it shows it is downloading 1.19GB. Why is this ? Do i have to download 1.19 GB?

I already have ios 7.0 installed in my iphone 4S. Although the size of ios 7.0.2  shows only a few MB, but when i click update using from my itunes it shows it is downloading 1.19GB. Why is this ? Do i have to download 1.19 GB?

If you update using iTunes, the full iOS is downloaded. If you update directly on your phone, this is called a "Delta" update, & only the changes to the iOS are downloaded. That's why you see the difference you see.

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