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Knarl

macrumors member
Original poster
I'm downloading the new 4.0.1 OS update now, and I see the obscene file size.

A question to people who have already updated this new version to their phones - does this update actually take up that much space on your phone? Or does it replace the old OS and therefore not make much of a difference?

My 16 gb can't take a superfluous 1/2 gig hit, just for a more accurate signal...
 
I'm downloading the new 4.0.1 OS update now, and I see the obscene file size.

A question to people who have already updated this new version to their phones - does this update actually take up that much space on your phone? Or does it replace the old OS and therefore not make much of a difference?

My 16 gb can't take a superfluous 1/2 gig hit, just for a more accurate signal...

Replaces
 
Every update to the iPhone is a complete OS image, not just some patch files. So the OS is being completely replaced each time with a fresh copy.
 
Every update to the iPhone is a complete OS image, not just some patch files. So the OS is being completely replaced each time with a fresh copy.

I've had some smaller updates in the past. Not sure it replaces the complete OS everytime.
 
I've had some smaller updates in the past. Not sure it replaces the complete OS everytime.

It always replaces/reinstalls the whole OS.
They never do partial updates.
They always have been full size even if its a few lines of code that they changed since last firmware built.
 
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