https://youtu.be/kDXxM-mCWFgFor anybody else who wants to know the difference.

I still haven't got this one. Stuck on April.Can be a little slow with getting updates. You know how to check for updates correct?

Clean the earpiece. I had this issue after a year of owning it.

Get a custom launcher like Nova, add an icon pack and you'll have a different phone automatically.

This is the best answer.You need to learn as an owner of a device, how to optimise it.There are other manufacturers that have devices with auto optimisation, but they can be a hindrance to your experience with your device if you don't know how to twe...