I assume they are speaker vents as its a row of dots at top, phone works great but I am going to sell it, what happened was about 2 months ago I put phone in pocket day after I washed them and some powder must of not washed off properly so got over phone, I used ipa and a toothbrush on both the vents and the usb port which worked great but I noticed the main issue with cleaning the vents is they are so small I couldn't get into them, I managed to get a few tiny toothbrush pieces in and they worked but I guess they just pushed the dust/powder inside.
I want to clean it deeper though as I am selling to a place that gives you amount based on condition.
I want to clean it deeper though as I am selling to a place that gives you amount based on condition.