The heatwave wreaked havoc on one of my dashcams - blackvue DR-3500FHD.
Video quality got completely hazy... so i knew what i had to do... take the damn thing apart and clean the lens from the inside.
so..here goes...
these 2 screws held the lens in place.
pop the lens off and clean both front/back
re-assemble and test...if still blurry keep cleaning.
back to normal quality after cleaning: