This is a point of order. Under My Files in the phone, if you have a a MicroSD card installed there will be 'sdcard' and 'extSdCard'. Don't know exactly how the storage is transferred but from the aforementioned, I believe there are these 2 storage locations besides your phone's.

There's an app that disables the ascending ringtone but I cannot recall the name. Search for it in the Play Store.

Right you are. Thanks.

Your statement is not entirely correct but it is also not completely erroneous. Taiwan is not China per se.

At this juncture, yes Korea is ahead in this context albeit slightly. But remember when Japan was way in front of Korea at one point in time? Now look where the latter stands in terms of technology. And as things are developing, I can see that Taiwan will soon catch up.