I tried to remove dust from the earpiece of s20 inserting a paper in it though the sound is perfectly fine still I wonder if I damaged something else....

Does anyone's s20 doesn't scan wifi network of my neighbors. On my other phone I can see 3 to 4 wifi networks near me though the signals are weak but in my s20 I can see none of the wifi signals unless the wifi is at my home. Is anyone having the sam...