Small black rubber ringWhen replacing the home button on my iPhone 4 I ended up with a small rubber ring about 4mm in diameter. Can't find where it ...
Back cover will not slide back onAfter replacing the home button on my iPhone 4 I went to slide the back case on and it is getting stuck on the sim card side ...
Answer to: Small black rubber ringResolved it. Feel like a bit of an idiot, fell off one of my tools.