Smkaa-2 Sim 2 Sóng

Depending on your điện thoại cảm ứng it will either come with a dual SIM or single SIM tray. Dual SIM models allow you to lớn use two SIM cards in one device. This is handy if you have separate phone numbers for work and home or if you would like to use a local number while keeping your original number active when in a foreign country. 


There are three types of SIM card trays:

Single SIM: 1 SIM thẻ slotDual SIM: 2 SIM card slotsHybrid SIM: 1 SIM thẻ slot and a hybrid slot

A hybrid slot can take either a second SIM thẻ or a microSD card for expandable memory, giving you the flexibility to choose between a second SIM card or extra storage.

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To kiểm tra which type of SIM card tray your device has, remove the SIM card tray & have a look. If it says SIM2 it"s a dual SIM, if it says SIM2 microSD it"s a hybrid.


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The S21, S21+ and S21 Ultra come with a new, more compact dual SIM thẻ tray. This tray has space for one nano SIM card on the top, and another on the underside. Follow the steps below for more details on using two SIM cards with your S21.

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Activate both SIM cards are activated you can receive calls and messages on both cards. If you are speaking on a gọi using one card, the other thẻ cannot be used to lớn receive new calls at the same time.


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Once you have enabled both SIM cards, you can switch between SIM cards quickly using the quick panel or through the settings menu.

To switch between SIM cards through the quick panel:


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