The supports up to iOS 15.8.3 (as of 2025). Apple no longer releases new major iOS versions for this device, but it continues to receive critical security updates.
Downloading the correct iOS firmware (IPSW) for your Go to product viewer dialog for this item. download ios firmware for iphone 6s
Apple only allows installation of firmware versions. Currently, only the latest iOS 15.x release is signed for iPhone 6s. Older versions (iOS 14, 13, 12, 9) are unsigned and cannot be installed. The supports up to iOS 15
No. The iPhone 6 uses iPhone7,2 firmware; flashing iPhone8,1 will hard brick it. Apple only allows installation of firmware versions
⚠️ unless you saved SHSH blobs and use advanced tools (not recommended for beginners).
| Model Number | Identifier | Region/Network | |--------------|------------|----------------| | A1633 (US) | iPhone8,1 | AT&T, T-Mobile, Verizon | | A1688 (Global) | iPhone8,1 | Most worldwide (GSM/CDMA) | | A1700 (China) | iPhone8,1 | China mainland (CDMA) |