Enter your secondary Apple ID email address in the "Apple Account" field. Step 3: Flash the IPA File
This happens if the version of the IPA you downloaded is too old or corrupted. Delete the app and try downloading a version 12.x or 13.x IPA built specifically for iOS 10. install download youtube ipa file for ios 1034
This is the most critical part. Search for a modded YouTube IPA that explicitly states support for iOS 10 or is a "modded version" from active projects like YTLite , YTLitePlus , or uYouPlus . A good place to start is the project page for YTLitePlus on GitHub, but be mindful that development status can change over time. Enter your secondary Apple ID email address in