I hear iOS 8 needs 4GB to install but it's only 1GB so do I get the 3GB back after I've installed it?
JanSt / MOD
Sep. 22, 2014 at 16:20
Yes. If you update over the air the file gets unpacked on the phone before install. Thus the extra space.
BEST: update over itunes via USB. No extra space needed because the file gets prepared on your PC. It's also better if you ever want to jailbreak.
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