We use cookies to improve your experience and for analytics. By continuing to use this site, you accept our use of cookies. Privacy Policy

Learn the button combination (Power + Home) to put the device into Device Firmware Update mode if it gets stuck.

The iPhone 4S is a "forever phone" in the eyes of the modding community. Whether you stay on the modern-ish iOS 9.3.6 or retreat to the nostalgic speed of iOS 6.1.3, the firmware you choose defines the soul of the device.

Here is a comprehensive look at the world of iPhone 4S firmware, from official updates to the "Golden Age" of downgrading. The Final Destination: iOS 9.3.6