Help! Nokia Lumia 520 Blackscreen!

[TianaCorkery]

i got a new charger which made my tablet(android) not charge and my phone(nokia L 520) not charge so i used my old charger and that made my phone completely black and it only vibrated my tablet flash that its charging but it isnt.. is it my electronics or the charger? or is there a method to solve this Thank Youu

 

[Titillating]

Not sure I fully understand the issue. So you think that the charger somehow caused your devices to stop working? Are you sure the charger was compatible with the device? If it provided more than the acceptable power, it could have overloaded it I suppose.