Walk through the to bypass App Store restrictions
Facebook frequently updates its security protocols. Even if you successfully install an old IPA, you may encounter "Login Error" or "Connection Error" because the app's internal code is no longer recognized by Facebook's modern servers. 3.5 device to make these apps run better?
Maya sighed, opened Safari, and typed mbasic.facebook.com . The page loaded in grainy green, no stories, no reels—just messages. She smiled. It was enough.
Signs of a fake/malicious IPA:
If you've never "bought" Facebook on your account before, the App Store may just block you. To fix this, you need to "purchase" it on a newer device or a computer first:
"Sam needed Facebook on an old iPad stuck on iOS 9.3.5. The App Store offered only the latest app requiring newer iOS, so Sam searched for an IPA that would install on older devices. After reading forums, Sam learned to avoid untrusted sites offering cracked IPAs. Instead Sam used these safe steps: check if the device still had a previously purchased compatible version in the App Store’s Purchased library (often letting you download an older compatible build), or use iTunes on a trusted computer with a previously downloaded IPA backup. A helpful friend with an older Mac had archived an official Facebook IPA that matched iOS 9.3.5; Sam verified its integrity, installed it via iTunes using the same Apple ID, signed in, and kept the device offline while checking app behavior. The app worked, but some modern features were limited. Sam’s takeaway: prefer official purchased backups or Purchased-app downloads over random IPAs, verify files, and expect feature and security limitations on deprecated iOS."