To successfully install a Facebook IPA on iOS 7.1.2, you require:
Apple has mandated App Transport Security (ATS) requiring TLS 1.2 or higher for network connections. While iOS 7.1.2 supports TLS 1.2, older versions of the Facebook app may utilize deprecated cipher suites or API calls that are no longer accepted by Facebook’s backend servers. Facebook Ipa Ios 7.1 2 Download
An IPA (iOS App Store Package) is the archive file that stores an iOS app. Think of it as the equivalent of a .exe file for Windows or .apk for Android. Each IPA is encrypted with a FairPlay DRM linked to the Apple ID that purchased it. To successfully install a Facebook IPA on iOS 7