專業拆解論壇 iFix
除了botton本身沒變
attach的地方有做修正耶！
似乎是apple試著解決home鍵不靈敏的作法
Home button itself is the same, however the flex cable attached to it is completely different. You can not swap the flex cables between the two and have it work, due to the screen.
And doing a screen swap from the 4S to the 4 will not work, due to physical differences, and locations of flex cables and components.
