Prompt [Q] Running old Facebook Messenger with SMS in KitKat

Hello!

For ages, I held on to the old version of Facebook's messenger in order to retain the SMS chat head functionality. However, this was always a finicky feature as it would disappear depending on the model of phone and OS version detected.

When I loaded the APK onto my newly 4.4-flashed phone (CM11 based), it no longer gave the option to use SMS. With the advent of the default SMS app system in 4.4, I worry that the app wouldn't work at all, even if I fooled it into revealing the option to toggle SMS on.

Are there suggestions? If I modified the contents of the manifest to work with my phone and android version, would the archaic SMS handling system even work under 4.4?

Cheers, all