Pedzisa mutsara unotevera nesarudzo yakanakisisa yokuti: Kufambisa kadhi.  Zvaunogona kuita: - Iva nechokwadi chokuti magnetic strip yakatarisana nomuravi, ipapo fambisa kadhi kumusoro kana pasi zvishoma nezvishoma. - Iva nechokwadi chokuti magnetic strip yakatarisana nomuravi, ipapo fambisa kadhi kumusoro kana pasi nomuravi nokukurumidza.  Mhinduro:
Iva nechokwadi chokuti tambo yamagineti yakatarisana nomuravi, ipapo fambisa kadhi kumusoro kana pasi pomuravi nokukurumidza.