About This Update
iOS 11.3.1
(build 15E302) is an official Apple
over-the-air update for the iPhone 5s (GSM),
released on 2018-04-24T17:09:54Z.
The update package is 672.04 MB.
This is a delta (partial) update that requires
11.2.1 already installed.
This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.
Payload file: 12f15deab90a351f60dd1c8aac6a024d9d82291d.zip.
Direct URL
http://updates-http.cdn-apple.com/2018/ios/091-78270-20180419-C001C654-40BC-11E8-8E7B-59ECC3535ADC/com_apple_MobileAsset_SoftwareUpdate/12f15deab90a351f60dd1c8aac6a024d9d82291d.zip
Filename
12f15deab90a351f60dd1c8aac6a024d9d82291d.zip
Other Devices
