If you are looking to push the limits, the jailbreak community offers tools to modify your firmware. The primary jailbreak for iOS 9.3.6.
Very limited; most modern apps require iOS 12 or higher. Stability: High, but the interface can feel sluggish. The "Sweet Spot": iOS 6.1.3 proshivki aifon 4s skachat
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 If you are looking to push the limits,
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. Stability: High, but the interface can feel sluggish
Learn the button combination (Power + Home) to put the device into Device Firmware Update mode if it gets stuck.
Many enthusiasts choose to "skachat" (download) iOS 6.1.3. This is widely considered the best firmware for the 4S because of its skeuomorphic design and lightning-fast speed.
Necessary for the restore process.