Does downloading new updates on your iphone use avalible storage?

I only have 1.8 mb of storage left on my phone and ios6 needs 2.4 to download? I honestly don't know how because i deleted almost everything! Anyways, i was wondering if when you downloaded new updates (ios6) if it would use all the storage left on my phone?

I think you mean 1.8GB but yes, you'll need at least the 2.4GB required. Delete more. But be sure to back up your iPhone because an update will DELETE everything! And you will lose the YouTube app forever if you update.

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