Haven't noticed anything abnormal on my Samsung a5. Are you sure your phone isn't an lg????;)
Wiped off my glasses, installed a pair of brand new eye and I can confirm !! Its not LG but ol' pal Sammy :)
Whenever I use youtube app on my android mobile there is a small casting button on top, when pressed it directly opens the video on my smart TV.
Now, can I use the Fire Stick the same way to instantly cast youtube videos to my non smart TV ?
You cannot update the software because you are having SD card in your phone! Remove it, and it will update.
Also, I would suggest reset your phone without SD card in it and then later on format the card within your phone....
According to the below link, the S-view functionality for third party is fixed by Samsung.
Can anybody confirm the same on Stock.
Some ppl say its okay to keep overnight, sum don't. I personally dont keep the phone on charge overnight. (and it takes 4hrs to complete charge)