Download Facebook on that newer device to link it to your account.
Fortunately, your device is not obsolete. There are several safe, verified workarounds to get Facebook running smoothly on iOS 12.5.7. This article walks you through every available method, from downloading older app versions to using lightweight web alternatives. Method 1: The App Store "Purchased" Trick (Recommended)
to that device's App Store using the exact same Apple ID linked to your iOS 12.5.7 device. download facebook ios 12.5.7
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Occasionally, the App Store may prompt you for updates that do work on older systems. Always check your for improvements to the older Facebook version. Troubleshooting: Why Isn't the App Working? Download Facebook on that newer device to link
If the app remains incompatible or runs poorly, you can access your account via a mobile browser: facebook.com Share icon (square with an up arrow) and select Add to Home Screen for quick access that mimics an app. Apple Support Community Important Considerations
Currently, the official Facebook app in the App Store requires iOS 13.4 or later. Because iOS 12.5.7 cannot be upgraded to iOS 13, searching for Facebook directly in the App Store on an un-updated device usually results in an error message stating that the app is incompatible. This article walks you through every available method,
: Search for Facebook in your list of previously downloaded apps. Download Older Version Cloud Icon