Samsung S20 Ultra 5G dirt behind rear camera glass

[Sleepy2705]

Hi I have been having problems with my rear camera not focusing properly due to dust getting behind the rear camera glass, I purchased a replacement glass and removed my old one cleaned everything and replaced the glass which fixed the focus issue but only a few days later i noticed dust behind the glass again  I cannot figure out how its getting in other than the small mic hole can i block that hole off.

[Star_girl]

Maybe you can use camera protection, I am using it on all my phones.

[TechZilla]

If you block the mic hole it will ruin video recording, when you replaced the glass did you check it was seated properly? If the seals have been damaged or deteriorated over time this might be the problem. Also if individual parts chip, crack or get damaged especially around where the adhesive attaches this would leave a tiny gap. Third option is speaker grills and gaskets around ports etc, has one of them moved slightly or damaged?

[Sleepy2705]

I have a camera protector also i used a new adhesive gasket on the glass and it is correctly seated, good thought on speaker i will see how to remove back of phone and give it a good clean plus check gaskets and grilles. Thankyou.