. Since devices like the iPhone 5s, 6, and 6 Plus cannot update past iOS 12, standard App Store downloads will fail with a compatibility error. Apple Support Community Installation Methods for Legacy Devices

How can i install Facebook in ios 12.5.5. iPhone 6 Plus, iOS 12. Posted on Oct 3, 2022 8:36 AM. (48) Me too (2045) Me too Me too ( Apple Support Community

To run version 1255 natively on period-correct hardware, you need a jailbroken iPhone.

Jailbreaking an iOS 12.5.5 device allows you to install tweaks like AppSync Unified and Checkmate, Store! . These tweaks bypass App Store compatibility checks and let you manually install older .IPA files. Warning: Jailbreaking disables core iOS security frameworks and makes your account credentials vulnerable to malware. Troubleshooting Common Issues "This app is incompatible with this device"

Facebook version refers to an older build of the Facebook iOS app, likely released around late 2017 or early 2018 . The version numbering has changed multiple times over the years, but “1255” remains a recognizable milestone for users who remember:

: A popup will appear saying, "Download an older version of this app?" Tap Download .

A prompt will appear stating "Download an older version of this app?". Tap Download . Method 2: Use the Safari Browser