Why does my phone sound change when I touch the volume button?

Question

Mobile devices

Yesterday, when watching a video on YouTube, I didn’t have sound, I wanted to add a little because there were people at home, and the sound instantly went up to full, and I didn’t even press the volume, but just touched it. Perhaps the volume button has become touch (I do not know how). What can you advise? I didn’t find anything on the Internet (or, as always, I searched badly). There was nothing related to this in the sound settings. Phone Xiaomi mi 8 lite

Answer 1

Sounds like contact science, and the timing is right. There are many options - from contacting a service, to washing with alcohol without opening.
I need isopropyl alcohol at a concentration of 99% (and no less! Any water in alcohol will kill the phone), and a single syringe with a needle. Gain alcohol and pour about 0.1-0.2 cubes of alcohol through the needle into the gap between the button and the case, poke the button several times.
There are a lot of risks - you can dissolve some kind of glue and peel something off, you can pour alcohol inside the screen (and possibly dissolve it).
You do this naturally at your own peril and risk - it helped me with the ancient HTC, whether it will help you - I can't know.

Answer 2

I advise never to buy xiaomi phones again (I don't buy anymore).