更改绑定手机号的方法如下:
1、首先打开支付宝客户端。
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2、然后在支付宝中选择箭头所指处的“我的”-“设置”选项,点击进入。
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3、然后在设置页面中,选择最上方的“安全设置”。
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4、然后在安全设置页面中,选择红色箭头所指处的“手机号”。
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5、接下来在页面中选择“更换手机号”即可。
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