05-13-2012 10:09 AM - edited 05-13-2012 10:09 AM
Social Feeds is a core application of OS 6 and higher. As such, you can reload it by using BlackBerry Desktop Software.
Plug your phone in to your PC and open BlackBerry Desktop Software. On the left side of the software, click Applications. I have to be honest, I'm not sure if it'll be listed there or not. If it is, it will show a plus " + " sign beside it because you've deleted it from your phone. Click the plus sign then click Apply at the bottom.
If it's not listed there, you'll have to reload the OS to your phone. Do this while in BDS. Click Device at the top of the software then Update. When the box opens, click View Other Versions then choose the OS with Currently Installed beside it.
Let us know if that helps you.