Do certain application effect hardware components in smartphones?

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http://androidforums.com – All I know is that once I started downloading apps on my SGS2, the camera started to take horrible quality pictures. Pictures that would come out too dark, hazy, glowing red eyes, etc... And these were taken with flash on. I remember taking some excellent quality looking pictures the first few times I used the camera, but as time went on the camera stopped taking those excellent quality looking pictures, the same thing happened with the video quality. I'm hoping this doesn't happen with the Samsung Galaxy S3. (General)