https://itmanual.net/%ea%b0%a4%eb%9f%ad%ec%8b%9c-%ec%9b%90%ea%b2%a9%ec%9e%a0%ea%b8%88%ed%95%b4%ec%a0%9c-%ed%8c%a8%ed%84%b4-%ea%b9%8c%eb%a8%b9%ec%97%88%ec%9d%84%eb%95%8c-%ec%b4%88%ea%b8%b0%ed%99%94-%eb%b0%a9%eb%b2%95/
갤럭시 원격잠금해제, 패턴 까먹었을때 초기화 방법