iPhone 6s+ iPhone8,2

IPSW Unsigned 15E216

iOS 11.3

iOS

Version

11.3

Build ID

15E216

File Size

2.73 GB

Release Date

2018-03-29

Last Updated

2018-03-16

Download IPSW

Beta firmware? Download Here →

Want full hardware specs? View iPhone 6s+ specs →

About This Firmware

iOS 11.3 (build 15E216) is an official Apple IPSW for the iPhone 6s+, released on 2018-03-29. 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_5.5_11.3_15E216_Restore.ipsw

Checksums

SHA-256 38433d0532c9b2b42054dc0c96e99f5ef7c061b9db3d5081a34bb02b47904a1e

SHA-1 381567e25bc44c882ee557b7917c571731282a59

MD5 e59d88c475147a2d616ea41c5b0d2c5c

Direct URL

http://appldnld.apple.com/ios11.3/091-40131-20180329-378E547E-2968-11E8-83E9-E8BDE6893228/iPhone_5.5_11.3_15E216_Restore.ipsw

Other Devices

iPhone 7 Plus (Global)

iPhone9,2

iPhone 4 (CDMA)

iPhone3,3

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 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