There are no problems with the phone, it is completely authentic and has never been opened or dropped. I am using it currently, and it has been about a year and a half. The phone is actually very good, I am using it - come and see it, if you like it you can take it, if you don't like it you don't need to take it.
----(-Special Note: The box of the phone is ruined, no problem, whatever you want as a document can be provided -)...