Nokia earlier today issued a product advisory for the AC-300 charger model that it ships with its Lumia 2520 tablet. The company is also delaying the sales of Nokia 2520’s in these markets. The advisory was issued following fear of a quality issue with the charger that may put an user at risk of getting an electric shock while using the charger with the Lumia 2520. The countries affected are Austria, Denmark, Finland, Germany, Russia, Switzerland and UK. The advisory also asks people to stop using the charger with immediate effect.