I own a Nokia Lumia 920 and frankly speaking I had no issues with my phone till the day it got melted due to the over heating during the time it was getting charged. This is really very unfortunate that inspite of being such a big organisation, such things are happening to its device. My cell Phone is not in warrantee or guarantee but what happened to my phone is really very unfortunate. My Phone got melted at the charging point and the area around the charging point is also melted. All this happened when it was getting charged with its original charger only. In this incident even my charger got destroyed.

If I would have not come to know about this well in time, it could have even blasted.
This is really very unfortunate on the company behalf that they are risking a human life.