Nokia has issued a recall for several phone charger models manufactured by BYD, one of its Chinese third-party suppliers. The reason for the recall is that Nokia has determined that the plastic covers on the chargers could potetnially come loose and separate, exposing the electronics within. If a customer happened to touch certain components while the charger was plugged into a live socket, it could result in electrocution. The company is therefore offering an exchange program for the models affected, which were sold largely in North America and Europe. If you wish to check your own charger, then you can refer to Nokia's exchange program website, which shows that the model numbers affected are AC-3U and AC-3E (those manufactured by BYD between June 15th and August 9th, 2009), along with AC-4U (those manufactured by BYD between April 13th and October 25th, 2009). If you bought a charger before those dates, or it wasn't made by BYD, then there is no need to worry. Nokia also notes that no known cases of injury related to the problem have been reported.