How To Set Up Iphone On Tmobile

Fix cellular service on iPhone

The cellular connectedness on your iPhone requires a SIM from a carrier; contact your carrier to ready a cellular program.

iPhone 12 and subsequently tin connect to 5G networks. See the Apple Support article Use 5G with your iPhone.

Your iPhone can connect to a carrier network using a concrete SIM or an eSIM (not available in all countries or regions). On iPhone TenS, iPhone XR, and later, yous can use Dual SIM with the following:

Ane concrete SIM and one eSIM
Two eSIMs—bachelor on iPhone xiii models and iPhone SE (3rd generation)

Here are some of the many ways yous can utilise Dual SIM:

Use one number for business organisation and some other number for personal calls.
Add a local data program when you travel to some other country or region.
Have separate voice and data plans.

Notation: To use 2 different carriers, your iPhone must be unlocked.

Install a physical SIM

Insert a newspaper clip or SIM squirt tool into the small-scale hole of the SIM tray, then button in toward iPhone to squirt the tray.

Notation: The shape and orientation of the SIM tray depend on the iPhone model and your country or region.
Remove the tray from iPhone.
Place the SIM in the tray. The angled corner determines the correct orientation.
Insert the tray dorsum into iPhone.
If y'all previously set up a PIN on the SIM, carefully enter the PIN when prompted.

WARNING: Never endeavour to judge a SIM Pivot. An wrong guess can permanently lock your SIM, and you won't exist able to make phone calls or utilize cellular information through your carrier until you go a new SIM. Encounter the Apple Back up article Utilize a SIM Pin for your iPhone or iPad.

Ready your cellular program with eSIM

iPhone 10South, iPhone 10R, and later can digitally store an eSIM provided by your carrier.

Go to Settings > Cellular, then tap Add Cellular Plan.
Do one of the post-obit:
- Set up a new programme with a QR code provided by your carrier: Position iPhone so that the QR lawmaking appears in the frame, or enter the details manually. You may be asked to enter a confirmation code provided by your carrier.
- Install an assigned cellular plan: If you lot get a notification from your carrier that a plan was assigned to you lot, tap Carrier Cellular Plan Fix to Be Installed.
- Transfer a SIM from your previous iPhone to your new iPhone: Choose your telephone number from the list.
  
  If you don't see your phone number, brand certain y'all're signed in with the same Apple ID on both iPhone devices. Transferring a SIM to an eSIM isn't supported by all carriers or for all cellular plans. For more info, see the Apple Support commodity Transfer a SIM from your previous iPhone to eSIM on your new iPhone.
Tap Add Cellular Plan.
If the new plan is your 2nd line, follow the onscreen instructions to fix how you want the plans to work together.

Alternatively, yous can activate your cellular plan through your carrier's app (if supported). Go to the App Store, download your carrier's app, so utilize the app to actuate a cellular programme.

Convert a physical SIM to eSIM

If your carrier supports it, you lot tin can convert a physical SIM to eSIM on iPhone TenS, iPhone XR, and later.

Go to Settings > Cellular, then tap a cellular programme with a physical SIM.
Tap Convert to eSIM, then follow the onscreen instructions.

Manage your cellular plans for Dual SIM

During setup on models with Dual SIM, you can choose how iPhone uses each line. To modify the settings subsequently, do the following:

Go to Settings > Cellular.
Below Cellular Plans, make certain two lines are turned on. To turn a line on or off, tap a line, then tap Turn On this Line.

You tin also change settings such equally Cellular Plan Label, Wi-Fi Calling (if available from your carrier), Calls on Other Devices, or SIM PIN. The label appears in Phone, Messages, and Contacts.
Tap Cellular Information, then choose a default line. To allow iPhone to use either line depending on coverage and availability, plough on Allow Cellular Data Switching.

Y'all may incur roaming charges if Data Roaming is on and you're outside the land or region covered by the carrier's network.
Tap Default Phonation Line, and then choose a line.

When using Dual SIM, notation the following:

Wi-Fi Calling must be turned on for a line to enable that line to receive calls while the other line is in utilise for a call. If you receive a telephone call on one line while the other is in employ for a call, and no Wi-Fi connection is bachelor, iPhone uses the cellular information of the line that is in use for the call to receive the other line's phone call. Charges may apply. The line that is in use for the telephone call must be permitted for data use in your Cellular Information settings (either as the default line, or every bit the not-default line with Allow Cellular Information Switching turned on) to receive the other line's call.
If y'all don't plow on Wi-Fi Calling for a line, any incoming phone calls on that line (including calls from emergency services) get directly to voicemail (if bachelor from your carrier) when the other line is in use; y'all won't receive missed call notifications.

If you gear up up provisional call forwarding (if available from your carrier) from one line to another when a line is busy or non in service, the calls don't go to voicemail; contact your carrier for setup information.
If you make a phone telephone call from another device, such as your Mac, by relaying it through your iPhone with Dual SIM, the phone call is made using your default vocalism line.
If you outset an SMS/MMS Letters chat using one line, you can't switch the conversation to your other line; you demand to delete the chat and start a new conversation using the other line. Also, you may incur boosted charges if you send SMS/MMS attachments on the line that's non selected for cellular data.
Instant Hotspot and Personal Hotspot apply the line selected for cellular data.

Important: A SIM may be required to utilise cellular services when connecting to GSM networks and some CDMA networks. An iPhone activated on a CDMA wireless network tin too use the SIM for connecting to a GSM network, primarily for international roaming. Your iPhone is subject to your wireless service provider'due south policies, which may include restrictions on switching service providers and roaming, even after the conclusion of any required minimum service contract. Contact your wireless service provider for more details. The availability of cellular capabilities depends on the wireless network, your iPhone model, and your location.

Consider applicable data, voice, and roaming charges when managing your cellular plans, especially when you travel with iPhone. Come across View or change cellular data settings on iPhone.

Some carriers let y'all unlock iPhone for utilise with another carrier (additional fees may apply). Contact your carrier for authorisation and setup information. See the Apple Support article How to unlock your iPhone for employ with a different carrier.