This icon keeps popping up constantly and randomly. When I tap it it takes me to Facebook Messenger and there's nothing new there. Any ideas why it pops up or how to kill it? I disabled badges but this still shows up in the app.
I can only find a few things that new phones have over the N6; Better SoC (Snapdragon 820, Adreno 530), more ram (by 1gb in most cases), Quick Charge 3.0 (which is more "efficient" and not necessarily faster), and fast wireless charging.
I found this to be the most useful. Remember, fastboot and usb debugging are different. You don't have to have anything enabled to boot into fastboot.
www dot androidforums.com/threads/guide-how-to-flash-a-nexus-factory-image-manually.706533/