1、打开一个浏览器，在百度中输入“新浪微博”，单击“百度一下”，单击第一个新浪微博官网
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https://iknow-pic.cdn.bcebos.com/08f790529822720e6cbf05b176cb0a46f21fab0c"/>
2、在打开的界面中输入账户和密码，单击“登录”按钮
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https://iknow-pic.cdn.bcebos.com/55e736d12f2eb9383eb49eb9d8628535e4dd6fa4"/>
3、出现的界面往下面拉动
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https://iknow-pic.cdn.bcebos.com/902397dda144ad34d7a260ccdda20cf431ad8558"/>
4、单击“微博客服”选项
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https://iknow-pic.cdn.bcebos.com/7acb0a46f21fbe090d2d245f66600c338744ad0e"/>
5、出现的界面中，单击“绑定手机”选项
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https://iknow-pic.cdn.bcebos.com/fd039245d688d43f77da76b9701ed21b0ef43b0e"/>
6、打开的账户与安全的界面中，单击“手机号码”后面的“修改”选项
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https://iknow-pic.cdn.bcebos.com/8ad4b31c8701a18bb13df604932f07082938fea3"/>
7、单击电话号码后的“编辑”按钮
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https://iknow-pic.cdn.bcebos.com/9a504fc2d56285354c36366a9def76c6a6ef63a3"/>
8、单击“更换登录手机”选项
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https://iknow-pic.cdn.bcebos.com/c995d143ad4bd1137c1c537957afa40f4afb05a3"/>
9、单击“下一步”按钮
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https://iknow-pic.cdn.bcebos.com/4bed2e738bd4b31cb47873f08ad6277f9e2ff831"/>
10、输入验证码，单击“下一步”按钮
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https://iknow-pic.cdn.bcebos.com/1ad5ad6eddc451da78f2eba0bbfd5266d0163271"/>
11、输入新的手机号码和验证码，单击“确定”按钮即可
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https://iknow-pic.cdn.bcebos.com/8435e5dde71190efdd977594c31b9d16fdfa6009"/>