iOS/iPadOS/tvOS 11.3.1 IPSW Firmware

It should be noted that only signed versions of the IPSW files below can be restored using iTunes or 3utools. IPSW, iPhone Software, is a file format used to install iOS, iPadOS, tvOS, HomePod, and most recently, macOS firmware for devices equipped with Apple silicon.

Signed Firmware Versions

Device Release Date Version Link
MacBook Air (M1, Late 2020) May 3, 2021
macOS 11.3.1 (20E241)
Download (12.98 GB)
iMac 24-inch (M1, Four Ports, 2021) May 3, 2021
macOS 11.3.1 (20E241)
Download (12.98 GB)
MacBook Pro (M1, Late 2020) May 3, 2021
macOS 11.3.1 (20E241)
Download (12.98 GB)
iMac 24-inch (M1, Two Ports, 2021) May 3, 2021
macOS 11.3.1 (20E241)
Download (12.98 GB)
Mac mini (M1, Late 2020) May 3, 2021
macOS 11.3.1 (20E241)
Download (12.98 GB)

Unsigned Firmware Versions

Device Release Date Version Link
iPhone 8 Plus (Global) April 24, 2018
iOS 11.3.1 (15E302)
Download (2.86 GB)
iPad 5 (WiFi) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.49 GB)
iPad Air (China) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.40 GB)
iPad 5 (Cellular) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.49 GB)
iPhone 7 Plus (GSM) April 24, 2018
iOS 11.3.1 (15E302)
Download (2.86 GB)
iPad Pro (10.5-inch, Cellular) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.59 GB)
iPad mini 4 (Cellular) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.49 GB)
iPad mini 3 (China) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.49 GB)
iPhone X (Global) April 24, 2018
iOS 11.3.1 (15E302)
Download (2.77 GB)
iPad Pro 9.7-inch (Cellular) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.41 GB)
iPhone 7 (Global) April 24, 2018
iOS 11.3.1 (15E302)
Download (2.71 GB)
iPhone 6s April 24, 2018
iOS 11.3.1 (15E302)
Download (2.58 GB)
iPhone 5s (GSM) April 24, 2018
iOS 11.3.1 (15E302)
Download (2.53 GB)
iPhone 6+ April 24, 2018
iOS 11.3.1 (15E302)
Download (2.72 GB)
iPhone 8 (GSM) April 24, 2018
iOS 11.3.1 (15E302)
Download (2.71 GB)
iPad Air (Cellular) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.40 GB)
iPhone 7 Plus (Global) April 24, 2018
iOS 11.3.1 (15E302)
Download (2.86 GB)
iPhone 8 Plus (GSM) April 24, 2018
iOS 11.3.1 (15E302)
Download (2.86 GB)
iPod touch 6 April 24, 2018
iOS 11.3.1 (15E302)
Download (2.31 GB)
iPad Pro 12.9-inch (WiFi) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.46 GB)
iPad Air 2 (WiFi) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.49 GB)
iPhone 6 April 24, 2018
iOS 11.3.1 (15E302)
Download (2.58 GB)
iPhone 6s+ April 24, 2018
iOS 11.3.1 (15E302)
Download (2.72 GB)
iPad mini 3 (Cellular) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.49 GB)
iPad mini 4 (WiFi) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.49 GB)
iPhone 7 (GSM) April 24, 2018
iOS 11.3.1 (15E302)
Download (2.71 GB)
iPad Air 2 (Cellular) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.49 GB)
iPhone 8 (Global) April 24, 2018
iOS 11.3.1 (15E302)
Download (2.71 GB)
iPad 6 (WiFi) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.49 GB)
iPhone 5s (Global) April 24, 2018
iOS 11.3.1 (15E302)
Download (2.53 GB)
iPad Pro 9.7-inch (WiFi) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.41 GB)
iPad Pro 12.9-inch (Cellular) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.46 GB)
iPad mini 2 (Cellular) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.40 GB)
iPad mini 2 (WiFi) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.40 GB)
iPad Pro 2 (12.9-inch, WiFi) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.59 GB)
iPad mini 2 (China) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.40 GB)
iPad 6 (Cellular) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.49 GB)
iPhone X (GSM) April 24, 2018
iOS 11.3.1 (15E302)
Download (2.77 GB)
iPad Air (WiFi) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.40 GB)
iPhone SE April 24, 2018
iOS 11.3.1 (15E302)
Download (2.53 GB)
iPad Pro (10.5-inch, WiFi) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.59 GB)
iPad Pro 2 (12.9-inch, Cellular) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.59 GB)
iPad mini 3 (WiFi) April 24, 2018
iPadOS 11.3.1 (15E302)
Download (2.49 GB)