A prompt will appear: "Do you want to download the last compatible version?" Confirm by tapping .

No. iOS 7.1.2 is the final firmware release officially supported by Apple for the iPhone 4 hardware architecture. Why does the App Store say "Cannot Connect" on my iPhone 4?

Change the value strings of both keys from the old version (e.g., 11.49.9 ) to a modern version, such as 16.10.2 or 17.02.2 . Save the changes in the top right corner and exit Filza. Reboot or respring your iPhone 4.

Navigate to the root directory: /var/mobile/Containers/Data/Application/ (or /var/mobile/Applications/ depending on your setup). Find the folder and locate YouTube.app . Open the Info.plist file.

Are you comfortable with your device to try advanced fixes, or would you prefer more details on using the mobile web version? iPhone 4 iOS 7.1.2 - Review (4K)

Running the official YouTube app on an is no longer officially supported, as the app now requires iOS 16 or later to function . However, you can still access YouTube using several workarounds. Method 1: Safari Web Browser (Recommended)

The most reliable way to watch YouTube in 2026 is through the .

Download the YouTube mobile app - iPhone and iPad - Google Help