Wierd sound coming from my phone?

While I was listening to music at then end of each song I heard some wierd sound, I closed all apps and took my earphones out and the sound was still there, I turned off all connections aswell and the sound was still going on, I even screen recorded the sound and normally recorded it on voice record too and the... show more While I was listening to music at then end of each song I heard some wierd sound, I closed all apps and took my earphones out and the sound was still there, I turned off all connections aswell and the sound was still going on, I even screen recorded the sound and normally recorded it on voice record too and the sound was still going on
I restarted the phone and the sound was gone here's the screen recording that I did you can hear the sound

https://www.dropbox.com/s/3u2hn0szbisxswz/SVID_20190616_214940_1.mp4?dl=0
2 answers 2