ndugu na marafik naomben msaada, nina nokia lumia 920 ila inatatizo la kujizima zima. Mfano ukipiga picha inazima, pia sometime inajifungua yenyewe ile search ya bing.
To perform a hard reset press and hold the power-, volume-down- and camera buttons until the phone vibrates. Then release the power-button and keep the other two buttons pressed for another five seconds. The phone should reset to factory settings