When signals are in urgent need, there is no signal, which makes people wonder why hundreds of dollars are spent on mobile phone services every year. Now, thanks to T-Mobile, you can use the free cellular Starlink connection as a backup for your phone.

Table of contents

• Free 90-day cellular Starlink service
• Check mobile phone compatibility
• Sign up for T-Satellite invitation
• Activate eSIM
• T-Satellite initial restrictions
• Enjoy T-Life membership benefits
• How to register after beta test

Free 90-day cellular Starlink service

Although permanent free is obviously more ideal, T-Mobile is currently providing free Starlink Internet services for T-Mobile, Verizon, AT&T and other operator users for up to 90 days. The service, called T-Satellite, was originally launched in January 2025 to only a small number of T-Mobile users, and has now gradually expanded to users of almost all carriers in the United States, and you can participate as long as your phone meets compatibility conditions.

As long as you meet the requirements, the phone will automatically switch between the regular carrier network and the T-Satellite as needed. This will not replace your existing cellular data package, but will only serve as an alternative connection method for signalless areas.

You must complete your registration before 7 months to enjoy this 90-day free service. A small monthly fee will be required afterwards.

Check mobile phone compatibility

To qualify, your phone must meet the following conditions:

• The device is unlocked
• Supports eSIM (embedded SIM card)
• Support satellite communication optimization

Normally, if you buy a mobile phone directly from the manufacturer's official website, the device is likely to be unlocked. This means your phone can be used in different carrier networks.

The fastest way is to use the free detection tool provided by T-Mobile to see if your device supports its network. Just enter your IMEI number. iPhone users can go to Settings->General->About this unit to view; Android users can go to Settings->About Mobile->Status .

If the system displays the device compatible, it means it is unlocked. You can also confirm through the information in the device settings.

If you purchased the device from the carrier, it may still be locked. If the device is locked, please contact the operator to request unlocking.

Initially, T-Mobile only supported a few models using cellular Starlink services, but the support list has been significantly expanded today. Even if your device is unlocked, you must have one of the following models to participate:

• iPhone: All iPhone 13, 14, 15 and 16 series models
• Pixel: Pixel 9, 9 Pro, 9 Pro XL, and 9 Pro Fold
• Motorola: All moto razr 2024 and 2025 models
• Samsung: All Galaxy S21, S22, S23, S24, S25 series; All Galaxy Z Flip3, Flip4, Flip5, Flip6; All Galaxy Z Fold3, Fold4, Fold5, Fold6; Galaxy XCover7 Pro; Galaxy A36 and A36E; and Galaxy A54

More support devices will be added in the next few months.

Sign up for T-Satellite invitation

Currently, the cellular Starlink service is still in the beta testing stage, so you need to register first to get an invitation. No need to worry, as long as the equipment is compatible, you can basically join successfully. The early quota was limited, but it has now been converted to open registration.

Please fill in the registration form near the bottom of the T-Satellite with Starlink page.

Waiting for an email invitation, usually within 24 hours. Billing information is required later. The free service is actually a 90-day trial period and will be charged at $10 per month afterwards. This service is already included in some T-Mobile packages such as Experience Beyond and Go5G Next.

After completing the registration, you will receive a confirmation email and eSIM information.

Activate eSIM

An eSIM activation guide for your device model will be included in the invitation email. If your device only supports one eSIM and the current operator has occupied the slot, you need to contact the operator to replace it with a physical SIM card.

Please connect your phone to a Wi-Fi network (do not use mobile data). Wait for the system to notify " The T-Mobile cellular package is ready ". Click the notification and follow the prompts to complete the eSIM activation process.

T-Satellite initial restrictions

T-Mobile's cellular Starlink service is expected to be officially launched until July 2025. Prior to this, the service was still in the beta stage and there might be some problems.

Currently, T-Mobile's satellite service only supports sending text messages. Voice calls and data access functions are under development. However, location sharing and emergency text messages to 911 are supported.

Enjoy T-Life membership benefits

All T-Mobile users can enjoy the T-Life Membership Program, which offers exclusive discounts on a variety of services. You don't need to use the T-Life app, but you can get this extra benefit after joining the T-Mobile network.

Note that T-Life records mobile phone activity by default, although T-Mobile claims to collect data only when the app is running. In any case, the app doesn't really have to record anything you do.

In the T-Life application, click Management -> Settings to close the screen recording tool . Please note that this option will only be displayed after logging into your account. Since I haven't created a T-Life account yet, this option does not appear in the settings.

If you are considering changing an operator, you might as well apply for a "Network Pass" through the T-Life application, and you can try T-Mobile network for free for up to three months without changing the operator, mobile phone number or mobile phone. This benefit can only be used once per mobile phone.

How to register after beta test

Remember that even if the beta test is over, the T-Satellite service is still open to all users across the United States, whether you are a T-Mobile customer or not. As long as the phone is compatible, you can continue to use cellular Starlink to send unlimited SMS messages in areas where regular operators have no signal. Currently, the monthly fee is only US$10. In the future, as voice and data functions are launched, the price may be adjusted.

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