With AppSync Unified installed, you can now install IPA files directly on your device using tools like or iMazing on a computer, or by using a file manager within Cydia itself. The process generally involves downloading the IPA file to your computer, connecting your device, and using the tool to "install app" by dragging and dropping the IPA file onto your device. Because AppSync bypasses Apple's signature checks, any IPA you install will run without issue.
How to Install Any App on iOS 5.1.1 or Older - (ipad First Gen) ipa ios 5.1.1
iOS 5.1.1 represents a time when Apple’s mobile OS was simpler, more forgiving, and fully offline-capable. Running the right IPA files on an old iPhone 4S or iPad 2 is like opening a time capsule. With AppSync Unified installed, you can now install
Is your device , or do you need help with that step? How to Install Any App on iOS 5