一、手机操作
打开京东APP，点击右下角我的。
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2. 点击自己头像位置
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3. 点击账户安全
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4. 点击手机验证后边的手机号
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5.在这个界面上根据手机是否遗失进行选择，譬如原手机还存在戚此，就选择第一项，接受验证码后选择合适的方高拍迅式进行验证。
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6.如果手机遗失的，就在步骤5中选择不能接收验证码，之后进行支付密码验证和身份信息验证，最后输入新手机号即可。
二、电脑操作
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登陆京东，进入“我的京东”-“账户设置”-“账户安全”页面，点击“手机验证”后面的“修改”按钮进行修改已经绑定的手机号；
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若已绑定的手机无法正常使用，请点击通过“银行卡信息验证+手机验证码”/“支付密码验证+手机验证码”/“银行卡信息验证+支付密码”任意一种方式进行修改绑定手机；如无法认证以上方式，您可以点击账户申诉，进行身份验证；
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