Some of the early MTH did not have batteries. I have a few. I converted my GS4, same model, to TMCC with an ERR board. I did not add sound, i did not want to spend that much. I am ok without sound, still has smoke.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .