Because the old app cannot understand the modern server data, it fails to log in. Sideloading the IPA installs the user interface, but it cannot force Facebook’s modern servers to communicate with outdated software. Alternative Solutions for iOS 9.3.5 Users
require much newer software (often iOS 13.0 or higher). iOS 9.3.5 is the final update for several legendary devices, including the iPad Mini 1 facebook ipa for ios 9.3.5
Jailbreaking allows you to bypass Apple's signing restrictions and use tools like AppSync Unified to install IPAs permanently. (the standard jailbreak for 32-bit iOS 9.3.5). Because the old app cannot understand the modern
This creates a lightweight shortcut icon on your desktop that functions exactly like an app but utilizes the updated web version of Facebook, circumventing all API and compatibility crashes entirely. Share public link Share public link Do not be surprised if
Do not be surprised if the app opens but refuses to let you log in.