A:AnswerThis does not sound typical. I wonder if you somehow have the microphone set to also play through the speakers? Reach out to the HP support team or Best Buy Geek Squad for a resolution.
A:AnswerYou can buy display assembly around $300
https://www.ebay.com/itm/15-6-HP-ENVY-X360-15M-CN0011DX-15M-CN0012DX-LCD-Touch-Screen-Digitizer-Assembly/254159694401?hash=item3b2d192a41:g:jz4AAOSwTwtchmIl
A:AnswerYes and no! Probably you cannot have both screens on at the same time. You can have only external one at that resolution. Also all the 4K TV's support FHD. I recommend you to read this first.
Also because of the USB-C port, you can find lots of adapters /Converters for whatever needs you might have!
https://www.cnet.com/news/how-to-use-your-4k-tv-as-a-monitor/
A:AnswerHP does offer Global Warranties that can be registered in many countries! Take a look at this support link! https://support.hp.com/us-en/document/bpr01266
A:AnswerI bought an LG 8x usb 2.0 super multi portable dvd external drive to go along with this laptop because I was having problems getting the Adobe licensing to work on downloaded software. I haven’t had any problems so far with this drive.
A:AnswerThis model does not have the Gorilla Glass screen. The speakers are above the keyboard. When flipped and viewing in tablet mode the speakers sound muffled as they are facing away from you.