Tool material: support dual-card or higher versions of iPhone such as iOS 12. 1, iPhone XS Max or iPhone XR.
Methods/Steps Step by Step Reading
1
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First, take out the card slot with the card-taking needle and put in the SIM card.
2
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After activating the second number, mark the two numbers separately. If you want to make subsequent changes, click Settings-Cellular Network, then click the number whose label you want to change, and then click the cellular phone number label.
three
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Set one of the numbers as the default number.
four
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When making a call, click the phone number label on the dial near the top of the screen, and then click the number you want to use to switch between different phone numbers to make a call.
five
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Regarding the setting of mobile data, only one number can be used for cellular mobile data at the same time. Click Settings-Cellular Mobile Network and click Cellular Mobile Data. Select the default number
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