My 6th replacement iPhone (other ones had a mixture of more serious issues) has a silent switch that rattles when you shake the phone. The rattle does not affect function and the switch feels relatively tight when using it normally but if you push it up and down in the other direction (not pushing it to enable or disable silent but on the other axis) it feels loose. This causes the rattle. I'm not really sure wether to worry about it or not as it works perfectly fine and doesn't switch modes randomly and you can only really notice it if you put it down on a table or shake it. In addition, the home button is slightly loose when you place your finger on top and move it around a bit. I'm reluctant to even consider returning it as my other iPhone 6's have had much worse issues like clicking screens, dead pixels, etc. Should I just suck it up? Advice please!