About This Firmware
iOS 11.0.3
(build 15A432) is an official Apple IPSW
for the iPhone 6s,
released on 2017-10-11.
The download is 2.47 GB and 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 checksums below.
Filename
iPhone_4.7_11.0.3_15A432_Restore.ipsw
Checksums
SHA-256
06072eda4521d0df3e01d5a9f2c1abbea9523b8b7dcd0c27d92e5acd9382c4d3
SHA-1
0f3a42ac4329c7c81e4c5bcafb9a80bae823d00b
MD5
5afba7f60f56f31cd12cde4f9bc2f5a9
Direct URL
http://appldnld.apple.com/ios11.0.3/091-38389-20171011-DF3D9E06-AB95-11E7-98AD-40A9187BE358/iPhone_4.7_11.0.3_15A432_Restore.ipsw
Other Devices
iPhone XS Max
iPhone11,6
iPhone X (GSM)
iPhone10,6
iPhone 15 Pro
iPhone16,1
iPhone 2G
iPhone1,1
iPhone Air
iPhone18,4
iPhone 3G
iPhone1,2
How to Restore with This IPSW
iTunes / Finder
macOS & Windows- Download the .ipsw file to your computer.
- Connect your iPhone 6s 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 6s 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 tipIf 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