https://qooah.com/2013/12/19/blackberry-%e8%88%87-lg-%e9%81%94%e6%88%90%e5%8d%94%e8%ad%b0%e9%83%a8%e5%88%86-lg-%e6%89%8b%e6%a9%9f%e5%b0%87%e9%a0%90%e8%bc%89-bbm-app/