1、登录手机QQ，打开设置面板。
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2、点击设备锁、账号安全这一栏。
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3、修改密码，先输入自己的旧密码，然后再输入自己的新密码。
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34、密保手机修改：绑定密保手机后，一旦忘记密码可以通过短信快速找回。
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5、密保问题修改：只要回答上了先前自己设置的3个密保问题，就可以重新设置密码。
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