Learn about Dual SIM with iPhone Xs Max

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What you need


To use Dual SIM, you need a iPhone Xs Max and two nano-SIM cards.

To use two different carriers, your iPhone must be unlocked. Otherwise, both plans must be from the same carrier. If a CDMA carrier provides your first SIM, your second SIM won't support CDMA. Contact your carrier for more information.

Here's how to install the nano-SIM cards


Insert a paper clip or SIM eject tool into the small hole of the SIM card tray, then push in toward iPhone to remove your SIM tray, notice the notch in one corner of the new SIM card. Place the new SIM card into the bottom of the tray—it will fit only one way, because of the notch. Then insert the other SIM card into the top tray.
With the two nano-SIM cards in place, insert the SIM tray back into the device completely and in the same orientation that you removed it. The tray fits only one way.

Set up your cellular plan with eSIM

One of your cellular plans uses a nano-SIM and the other (or others) uses an eSIM. If you don't have a nano-SIM and your carrier supports it, an eSIM can serve as your only cellular plan. The eSIM provided by your carrier is stored digitally in your iPhone.
Follow these steps to activate your cellular plan with a QR code:

1. Go to Settings > Cellular.
2. Tap Add Cellular Plan.
3. Use your iPhone to scan the QR code that your carrier provided.

If you are asked to enter a confirmation code to activate the eSIM, enter the number that your carrier provided.
If necessary, you can manually enter your plan information. Tap Enter Details Manually, at the bottom of your iPhone screen.
To activate your cellular plan with a carrier app:

1. Go to the App Store and download your carrier's app.
2. Use the app to purchase a cellular plan.

You can store more than one eSIM in your iPhone, but you can use only one at a time. You can switch eSIMs by tapping Settings > Cellular > Cellular Plans and tapping the plan you want to use. Then tap Turn On This Line.
The next sections give you more information about the remaining setup screens on your iPhone.

Switch phone numbers for a call

You can switch phone lines before you make a call. If you're calling someone in your Favorites list, follow these steps:

1. Tap .
2. Tap the current phone number.
3. Tap your other number.

If you're using the keypad, follow these steps:

1. Enter the phone number.
2. Tap the phone number, near the top of the screen.
3. Tap the number you want to use.

Choose how your plans work together

Set your default number, which iMessage and FaceTime use and which you will use when you call or send a message to someone who isn't in your Contacts app.
On this screen, choose a number to be your default, or you can choose which number is to be used only for cellular data. Your other number will be your default.


Use Primary as your default line: If you select this option, Primary will be used by default for voice, SMS, Data, iMessage, and FaceTime. Secondary will be available just for voice and SMS.
Use Secondary as your default line: If you select this option, Secondary will be used for voice, SMS, Data, iMessage, and FaceTime. Primary will be available just for voice and SMS.
Use Secondary for cellular data only: You might want to select this option if you are you're traveling internationally and you want to keep Primary for voice, SMS, iMessage, and FaceTime. This will allow you to use Secondary for data.




Change your cellular data number





One number at a time can use cellular data. If you want to change which number uses cellular data, follow these steps:

1. Go to Settings > Cellular and tap Cellular Data.
2. Tap the number you want to use cellular data.

If you are active on a voice number that isn't your designated data number, data will not work while you are on the call.



Learn about Dual SIM status icons

The icons in the status bar at the top of the screen show the signal strength of your two carriers.




Manage cellular settings

To change your cellular settings for each of your plans, follow these steps:

1. Go to Settings > Cellular.
2. Tap the phone line whose options you want to set.
3. Tap each option and set it as you normally would.

Don't forget press thanks button