iPhone 5s (GSM) iPhone6,1

IPSW Unsigned 15A372

iOS 11.0

iOS

Version

11.0

Build ID

15A372

File Size

2.43 GB

Release Date

2017-09-19

Last Updated

2017-09-02

Download IPSW

Beta firmware? Download Here →

About This Firmware

iOS 11.0 (build 15A372) is an official Apple IPSW for the iPhone 5s (GSM), released on 2017-09-19. The file is served directly from Apple's CDN. This firmware is no longer signed by Apple. Standard downgrades are not possible, but the file remains available for reference and advanced use.

Verify the download using the SHA-256 or SHA-1 checksum listed in the Checksums section below.

Filename

iPhone_4.0_64bit_11.0_15A372_Restore.ipsw

Checksums

SHA-256 a0c47818d570c304d3c84d1d6548ed19b818d1eeab5d4f61ba2d1d34bc4560b7

SHA-1 c7c43324096e291a05042f3795983f395369abb5

MD5 3082ffa4fba2fb95bc17afe15ec361ce

Direct URL

http://appldnld.apple.com/ios11.0/091-31853-201700919-35B5A2B8-9027-11E7-B85A-3435B64D2808/iPhone_4.0_64bit_11.0_15A372_Restore.ipsw

Other Devices

How to Restore with This IPSW

iTunes / Finder

macOS & Windows

Download the .ipsw file to your computer.
Connect your iPhone 5s (GSM) via USB.
Open iTunes (Windows / macOS Mojave and earlier) or Finder (macOS Catalina+) and select your device.
Update (keep data): hold Option (Mac) or Shift (Windows) and click Update, then pick the .ipsw file.
Restore (erase & install): hold Option / Shift and click Restore iPhone…, then pick the .ipsw file.
Wait for the process to finish - do not disconnect.

Restoring will erase all data on the device. Back up first.

3uTools

Windows

Download and install 3uTools from 3u.com.
Connect your iPhone 5s (GSM) via USB and trust the computer on the device.
Go to Flash & JB → Easy Flash.
Click Import and select the downloaded .ipsw file.
Choose Flash mode: Update keeps data, Restore wipes the device.
Click Flash and wait for the progress bar to complete - do not disconnect.

Only flash firmware that matches your exact device model.

DFU Mode

Recovery tip

If your device is stuck in a boot loop or iTunes/Finder does not recognise it, enter DFU mode first, then select the .ipsw file as normal.

iPhone 8 / X and later

Quickly press & release Volume Up
Quickly press & release Volume Down
Hold Side button until screen goes black
Hold Side + Volume Down for 5 s
Release Side, hold Volume Down 5 more s
Black screen = DFU active

iPhone 7 / 7 Plus

Hold Sleep/Wake + Volume Down for 8 s
Release Sleep/Wake, keep holding Volume Down for 5 s
Black screen = DFU active

iPhone 6s and earlier

Hold Sleep/Wake + Home for 8 s
Release Sleep/Wake, keep holding Home for 5 s
Black screen = DFU active