iOS 11.3 Firmware

Showing all devices for iOS 11.3. Check signing status and download IPSW files.

version_lookup — browse firmware by iOS version

Try: 18.0.1  ·  17.5.1  ·  16.7.10

Device Identifier Build Status Released Size Actions
Mac mini (M1, Late 2020) Macmini9,1 20E232 Signed 2021-04-26 12.99 GB
iMac 24-inch (M1, Four Ports, 2021) iMac21,2 20E232 Signed 2021-04-26 12.99 GB
MacBook Pro (M1, Late 2020) MacBookPro17,1 20E232 Signed 2021-04-26 12.99 GB
iMac 24-inch (M1, Two Ports, 2021) iMac21,1 20E232 Signed 2021-04-26 12.99 GB
MacBook Air (M1, Late 2020) MacBookAir10,1 20E232 Signed 2021-04-26 12.99 GB
iPad mini 3 (Cellular) iPad4,8 15E216 Unsigned 2018-03-29 2.49 GB
iPad mini 2 (China) iPad4,6 15E216 Unsigned 2018-03-29 2.41 GB
iPhone 7 (GSM) iPhone9,3 15E216 Unsigned 2018-03-29 2.71 GB
iPad Pro 12.9-inch (WiFi) iPad6,7 15E216 Unsigned 2018-03-29 2.46 GB
iPhone 7 (Global) iPhone9,1 15E216 Unsigned 2018-03-29 2.71 GB
iPad mini 3 (WiFi) iPad4,7 15E216 Unsigned 2018-03-29 2.49 GB
iPad Pro (10.5-inch, Cellular) iPad7,4 15E216 Unsigned 2018-03-29 2.59 GB
iPad Pro 12.9-inch (Cellular) iPad6,8 15E216 Unsigned 2018-03-29 2.46 GB
iPhone SE iPhone8,4 15E216 Unsigned 2018-03-29 2.53 GB
iPhone 6 iPhone7,2 15E216 Unsigned 2018-03-29 2.58 GB
iPhone 5s (Global) iPhone6,2 15E216 Unsigned 2018-03-29 2.53 GB
iPhone 7 Plus (GSM) iPhone9,4 15E216 Unsigned 2018-03-29 2.86 GB
iPhone 6s iPhone8,1 15E216 Unsigned 2018-03-29 2.58 GB
iPad Air (China) iPad4,3 15E216 Unsigned 2018-03-29 2.41 GB
Apple TV 4 (2015) AppleTV5,3 15L211 Unsigned 2018-03-29 1.56 GB
iPhone 8 Plus (Global) iPhone10,2 15E216 Unsigned 2018-03-29 2.86 GB
iPad Air 2 (WiFi) iPad5,3 15E216 Unsigned 2018-03-29 2.49 GB
iPad mini 4 (Cellular) iPad5,2 15E216 Unsigned 2018-03-29 2.49 GB
iPhone 8 Plus (GSM) iPhone10,5 15E216 Unsigned 2018-03-29 2.86 GB
iPad Pro 9.7-inch (WiFi) iPad6,3 15E216 Unsigned 2018-03-29 2.4 GB
iPad mini 4 (WiFi) iPad5,1 15E216 Unsigned 2018-03-29 2.49 GB
iPhone 6+ iPhone7,1 15E216 Unsigned 2018-03-29 2.73 GB
iPad Pro 9.7-inch (Cellular) iPad6,4 15E216 Unsigned 2018-03-29 2.4 GB
iPhone 7 Plus (Global) iPhone9,2 15E216 Unsigned 2018-03-29 2.86 GB
iPad 5 (WiFi) iPad6,11 15E216 Unsigned 2018-03-29 2.4 GB
iPad Air (Cellular) iPad4,2 15E216 Unsigned 2018-03-29 2.41 GB
iPhone 8 (GSM) iPhone10,4 15E216 Unsigned 2018-03-29 2.71 GB
iPad Pro (10.5-inch, WiFi) iPad7,3 15E216 Unsigned 2018-03-29 2.59 GB
iPhone X (GSM) iPhone10,6 15E216 Unsigned 2018-03-29 2.77 GB
iPad Air (WiFi) iPad4,1 15E216 Unsigned 2018-03-29 2.41 GB
iPad Pro 2 (12.9-inch, WiFi) iPad7,1 15E216 Unsigned 2018-03-29 2.59 GB
iPhone X (Global) iPhone10,3 15E216 Unsigned 2018-03-29 2.77 GB
iPad 5 (Cellular) iPad6,12 15E216 Unsigned 2018-03-29 2.4 GB
iPad mini 3 (China) iPad4,9 15E216 Unsigned 2018-03-29 2.49 GB
iPad mini 2 (Cellular) iPad4,5 15E216 Unsigned 2018-03-29 2.41 GB
iPad Pro 2 (12.9-inch, Cellular) iPad7,2 15E216 Unsigned 2018-03-29 2.59 GB
iPad mini 2 (WiFi) iPad4,4 15E216 Unsigned 2018-03-29 2.41 GB
iPhone 5s (GSM) iPhone6,1 15E216 Unsigned 2018-03-29 2.53 GB
iPhone 8 (Global) iPhone10,1 15E216 Unsigned 2018-03-29 2.71 GB
iPhone 6s+ iPhone8,2 15E216 Unsigned 2018-03-29 2.73 GB
iPad Air 2 (Cellular) iPad5,4 15E216 Unsigned 2018-03-29 2.49 GB
iPod touch 6 iPod7,1 15E216 Unsigned 2018-03-29 2.31 GB
iPad 6 (Cellular) iPad7,6 15E218 Unsigned 2018-03-28 2.41 GB
iPad 6 (WiFi) iPad7,5 15E216 Unsigned 2018-03-28 2.42 GB
Frequently Asked Questions

Common questions about firmware versions.

Apple signs firmware on a per‑device basis. A version may remain signed for newer devices while being unsigned for older ones, especially after a device reaches end‑of‑life or if a security patch only applies to certain chips.
The table above shows the build ID for each device. You can also look up build IDs on sites like ipsw.me or check your device’s "About" screen after installing (Settings → General → About → Version → tap the version number to reveal the build).
Not through normal means. Apple’s TSS server must sign the restore, and it will reject unsigned versions. However, if you have saved SHSH2 blobs and your device is compatible with a bootrom exploit (like checkm8 on A5–A11), you may be able to restore with tools like futurerestore.
These are cryptographic hashes that let you verify the integrity of your downloaded IPSW. After downloading, compare the file’s hash with the one shown in the details modal. If they match, the file is complete and untampered.