Does putting screen guard affects the screen for samsung s24ultra..or is it good without screen guard?? 

I charge my phone to 100 % complete s24 ultra but as soon as i remove it from charging within seconds it shows 99 percent ..is it problem with battery

I had a rattling noise coming out from camera while making a video, I submitted my S24 ultra to a service centre to fix it..however they claim that the noise is gone but it still there when I shoot video...I really don't want to go to service centre ...

I recently bought s24 ultra,it's just been a week but I have a major issue while shooting a video my camera makes a rattling noise which I was not expecting it's really frustrating,kindly fix the issue may be it's a technical problem or I don't know....