Root [International] Home button problems

[lewmcc]

Hi there ive been having some trouble with my s4's home button where I get a loud clicking noise and a stiff feeling when I use it. I took it into O2 and they said it was a common fault and so sent it off to get fixed, I was then contacted by Samsung saying they couldn't recreate the problem and so they posted it back to me... the problem continued but I just thought it was me being paranoid and yesterday the button "freed" itself leaving me with a crack all around the right hand side of the home button.

Has anyone had this problem aswell? And if so is there anything I can do? Im a bit ocd about stuff like this

Cheers for any help!