What is Facebook Live? What Happens After Streaming Ends? When and How I Should Use This Function? I cannot use Facebook Live Option. How to Fix? Solution One of the crazy features of Facebook, Facebook live, is the most used feature. It is enough to have a cell phone and a camera to share with your friends the moment you live and to broadcast them live. To go live on Facebook at mobile phone, you need an extra camera. You can use phone camera for this. If you want to broadcast live from the computer, you need a computer camera.