Many web pages fail to load due to out-of-date HTTPS root certificates. You’ll see “Cannot verify server identity” constantly.

Most iPhone 4s units today have no iOS 5 blobs. Therefore, this guide focuses on the , which is still 100% achievable.

By following these steps and taking the necessary precautions, you can successfully downgrade your iPhone 4S to iOS 5 and experience the simplicity and smoothness of an earlier iOS version.

This guide assumes you are technically proficient with command-line interfaces (CLI). This is not a "one-click" process.

Moderate. You will be using "Legacy iOS Kit." 🛠️ The Tools You Need

running iOS 9.3.6 (the final version) or an untethered downgrade to iOS 6.1.3/8.4.1. Minimum Storage