Remove OTA installed iOS 8 and reinstall on itunes

hey guys i have the iOS 8.1 update on my iPhone 5s. I downloaded iOS 8 over-the-air and it takes up too much storage space. So I was wondering if it is possible to cancel that update to go back to iOS 7 and relaunch iOS 8 on iTunes so that it can take up less space… ..

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There is no difference in the space required after the update whether you update the iOS on the air or via iTunes. The only known issue is that you need more free space on your iOS device before or during the update if you do it over the air. But, as you seem to have already downloaded the update to your phone, this doesn’t seem to be a problem for you, so just apply the update to your phone and you’re done.

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