Note10 plus speakers issues

[Afghanii]

Hi my note10plus speakers don't work currently when ice/cold my phone why what is the reason.

Please help me 

[Saadi121]

Check speakers test in Samsung Members app

[Afghanii]

There I tested good

[Saadi121]

Then its means no fault clean your speakers with makeup soft brush

[eyeshabutt]

Clean your specker grill