why is my phone making a charging bomb sound when it charging???

[AC Question]

Well, when I was charging my phone till its 62% its start making some kind of noise like a charge bomb just like in the movie then I got terrified. I shut it down immediately and open it again. This is not the first time, this is the second time. You said because of we put a card beside our phone, well there's no any card around my phone.

 

[Rukbat]

If it's the sound I think you're trying to describe, it's a leaky electrolytic capacitor, and the board that it's on (probably the motherboard) has to be replaced (very few repair shops do component-level repairs these days).