Can the secondary card of a mobile phone be separated independently?

The secondary card of the mobile phone can be separated; the secondary card of the mobile phone can be turned into an independent card by unbinding it from the main card; the owner himself brings his valid ID to the business hall where the number belongs to transfer the main card, secondary card The card is split, and the supplementary card can be changed to other packages on sale. The details are subject to the actual operation of the business hall.

The operating environment of this tutorial: MIUI12.5 system, Xiaomi 11 mobile phone.

Can the secondary card of a mobile phone be independent?

I am using the secondary card now, and my secondary card can be independent. Some packages and supplementary cards can be used independently, but there may be other requirements, such as requiring use for more than one year. Some packages may not be allowed to be used independently and can only be used as supplementary cards.

The secondary mobile phone card can be turned into an independent card by unbinding it from the main card. It is specifically recommended to go to the local operator to which the mobile phone card belongs to apply for unbinding. After unbinding, it can be used independently. The owner should bring his/her valid ID to the business hall where the number belongs to separate the main card and the secondary card, and then change the secondary card to other packages on sale. The details are subject to the actual operation of the business hall

China Unicom's secondary data card and main card are not dual cards with one number. They are essentially unified billing. The secondary card can only be used for data Internet access. It does not have communication functions such as text messages and calls, and only supports domestic data. Roaming, similar to the USIM card in 3G wireless network card.

To activate the data supplementary card business, you need to pay a monthly functional fee of 5 yuan. After that, the supplementary data card and the main card use the same package and tariff.

It’s just that the secondary data card only has the Internet function. When you need to use phone calls and text messages, you can only use the primary card.

The data supplementary card service is a new service developed specifically for China Unicom users to make full use of the data traffic in the package. Take the China Unicom version of iPhone 4 users with a monthly fee of 286 yuan as an example. The monthly data traffic in the package is 1GB. If you only use it on iPhone 4, you may not be able to use it up every month. Now that there are supplementary cards, you can’t use up your phone. The traffic can be used on laptops, iPads and other terminals, so that users' package fees will not be wasted.

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