This is an app store specifically for older iOS devices. After jailbreaking your iPhone 4, you can add repositories to Cydia (such as http://yzu.moe/dev/ ) to install Veteris.
Within Veteris, you can search for and download specific old versions (like version 11.0 or older) that are known to run on iOS 7.1.2. 3. Using the Mobile Web Browser messenger for iphone 4 ios 7.1.2 download
Tap the cloud icon next to Messenger. A pop-up will ask, "Do you want to download the last compatible version?" Tap Download . 2. Jailbreak and "Veteris" (Advanced) This is an app store specifically for older iOS devices