Tencent Digital (Shawn) The iPhone 7's capacitive Home button has reduced the chance of key corruption to a certain extent, but this does not mean that it is really invulnerable. If there is damage, what should the user do? Don't worry, Apple has already considered this issue.
At the MacRumors Forum, a user named iwayne revealed Apple’s solution to the iPhone 7 Home key failure.
In his published picture, it can be seen that when iOS detects that the Home button is not working properly, it will notify the user of the existence of the problem through a pop-up on the screen, while providing a virtual Home button for the user to use.
The virtual home button is actually an option that already exists in the system's "accessibility", but Apple's move as a temporary solution is still very intimate.
Since the iPhone 7's Home button doesn't have any moving parts, we don't know what causes it to fail. But even if it does fail, Apple’s solution ensures that users will not be at a loss.
Source: Ubergizmo