iOS/iPadOS/tvOS 4.3.5 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.

Unsigned Firmware Versions

Device	Release Date	Version	Link
iPhone 4 (GSM)	January 1, 1970	iOS 4.3.5 (8L1)	Download (0.65 GB)
iPhone 3G[S]	January 1, 1970	iOS 4.3.5 (8L1)	Download (0.41 GB)
iPod touch 3	January 1, 1970	iOS 4.3.5 (8L1)	Download (0.40 GB)
iPod touch 4	January 1, 1970	iOS 4.3.5 (8L1)	Download (0.64 GB)
iPad 2 (CDMA)	January 1, 1970	iPadOS 4.3.5 (8L1)	Download (0.61 GB)
iPad 2 (GSM)	January 1, 1970	iPadOS 4.3.5 (8L1)	Download (0.60 GB)
iPad 2 (WiFi)	January 1, 1970	iPadOS 4.3.5 (8L1)	Download (0.59 GB)
iPad 1	January 1, 1970	iPadOS 4.3.5 (8L1)	Download (0.58 GB)