sometime the button no function then i wait for awhile and repress it... and sometime i press other button... is it consider normal?

Try factory reset, if still same then bring to shop.

Final setup my 99% preferable look in X-Note v11.

looks like all version X-Note roms are all same2. Nothing change. 

factory reset means all my app will gone? how to do it?

Yes, all gone.

Settings - General - Backup and reset.

u can see picture
my friend just bought note 3 she asking me how to do
he got that case window but want seen u see screenshot look like this

please guide me urgent i need meet him to help

and my current android version 4.4.2 also will b back to original version?

u can see clear screenshot
that i need it guide me
[attachmentid=3872446]

Won't, it stay with your current version.

u see screenshot
where to find  Select info shown cover.

can u show me picture easy to me

Settings - Device - Lock screen - Select info shown cover.

Bwahaha.... 

Andrewtst Since you're bored, wanna try This? 

antt00 Do you still need a mirror for Msia NB4 rom?

If the sammobile link is now fast then no need lo. Thanks anyway.