Erasing iPhone

It would depend on what you mean by "erasing" your iPhone. For example, if you mean "restore the iPhone to its factory defaults," because you may want to sell the phone to someone else, then "yes," this will completely erase the phone and any data on it would be deleted.

Sorry, but you will have to provide more details on what you are referring to as I don't understand what this issue is about.

Also, please note that this is not a "chat" type forum. Typically, when you want to address another issue, you should start a new post so that it gets the attention that it deserves.