具體綁定的方法如下。
1、首先在手機上找到支付寶軟件，點擊打開支付寶。
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2、然後在打開的支付寶中找到我的，點擊打開紅框位置標註的我的。
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3、然後在打開的我的中找到設置，點擊打開紅框位置上的設置。
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4、然後在打開的設置中找到下圖紅框處的安全設置，點擊打開標註的安全設置。
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5、然後在打開的安全設置中找到手機號選項，點擊打開手機號。
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6、在打開的手機號選項中找到更換手機號的選項，點擊更換手機號，等到更換成功後就可以使用新更換的手機號來進行支付寶的登陸了。
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