Restoring YouTube on iOS 5.1.1, typically for the iPad 1st Gen, requires installing the TubeFixer patch via Cydia to enable video playback on the legacy app. Users must jailbreak their device and configure a custom Google API key within TubeFixer to bypass the obsolete YouTube API. For more details, watch the guide at How to Get YouTube on The First Gen iPad (iOS 5.1.1)
Since 2017, Google deprecated the legacy YouTube Data API v2, which broke every native YouTube app on iOS 5 and 6. If you try to open the stock app today, you are met with a frozen screen or an error: “Cannot Connect to YouTube.” Youtube Ipa For Ios 5.1.1
This is the most reliable way to restore functionality to the native YouTube app Jailbreak your device Restoring YouTube on iOS 5