Moving your Metro SIM card is usually straightforward, but the steps depend on whether your new phone uses the same SIM size and whether you're keeping the same number

A SIM card is the small chip that connects your phone to Metro by T-Mobile's network and stores your phone number and account information. When you get a new phone, you can often move the SIM card from your old device to the new one without calling Metro or paying a fee. However, some newer phones use different SIM sizes, and some situations require you to contact Metro directly.

The process takes minutes if your new phone accepts the same SIM size. If it doesn't, Metro will send you a replacement SIM at no cost, though it may take a few business days to arrive. Either way, you keep your existing phone number and plan.

Key Takeaways

  • If your new phone uses the same SIM size as your old one, you can move the card yourself by powering off both phones, removing the SIM from the old device, and inserting it into the new one.
  • Newer phones often use nano-SIM or eSIM technology, which may not match older SIM cards, requiring you to contact Metro for a replacement.
  • Metro does not charge for SIM replacements, but the new card takes three to five business days to arrive by mail.
  • Your phone number and plan stay the same when you move or replace your SIM card.
  • If your new phone uses eSIM instead of a physical card, you will need to contact Metro to transfer your service to the digital SIM.

Check what SIM size your new phone needs

Before you remove your SIM card, find out what size your new phone requires. Most phones sold in the last five years use a nano-SIM, which is the smallest standard size. Older phones may use micro-SIM or standard SIM, which are larger. Some newer phones, particularly recent iPhones and Samsung Galaxy models, use eSIM instead of a physical card altogether.

Check your new phone's manual or the manufacturer's website to confirm the SIM type. You can also call Metro at 1-888-863-8350 and give them your new phone's model number — they can tell you immediately whether your current SIM will work or whether you need a replacement.

Transfer a physical SIM card yourself

If your new phone uses the same SIM size, you can move the card without contacting Metro. Power off both your old phone and your new phone completely. Do not skip this step — removing a SIM while the phone is on can cause connection problems.

Locate the SIM card slot on your old phone. Most phones have a small tray on the side of the device; you may need a SIM ejection tool (a thin metal pin) to open it. If your phone came with one, use it. If not, a straightened paperclip works. Insert the tool into the small hole next to the SIM slot and gently push until the tray pops out. Remove the SIM card and set it aside.

Open the SIM slot on your new phone using the same method. Insert your SIM card into the tray with the gold contacts facing down and the cut corner aligned with the slot's shape. Push the tray back in until it clicks. Power on your new phone. Within a few minutes, you should see a signal bar and your phone number should appear in the phone's settings.

Request a replacement SIM if sizes don't match

If your new phone requires a different SIM size or uses eSIM, contact Metro by T-Mobile to request a replacement. Call 1-888-863-8350, visit a Metro store in person, or log into your account at metro.t-mobile.com and select "Order SIM Card" from the account menu. Have your account number or phone number ready.

Metro will mail the replacement SIM at no cost. Standard delivery takes three to five business days. Once it arrives, power off your new phone, insert the new SIM into the appropriate slot, and power the phone back on. Your service will activate within a few minutes. Your phone number and plan do not change.

Transferring service to an eSIM

If your new phone uses eSIM technology, you cannot move a physical SIM card. Instead, you must contact Metro to transfer your service to the digital SIM. Call 1-888-863-8350 or visit a Metro store. A representative will guide you through the process, which usually involves scanning a QR code on your new phone or entering an activation code that Metro provides.

The eSIM transfer typically completes within minutes. Your phone number and plan transfer immediately. You do not need to wait for anything to arrive in the mail. Once the transfer is complete, you can discard your old physical SIM card.

What to do if your phone doesn't recognize the SIM

If you've moved the SIM card but your new phone shows no signal or displays an error message, first power off the phone and reinsert the SIM card to make sure it's seated properly. Power the phone back on and wait two to three minutes for the network connection to establish.

If the problem persists, the SIM card may be damaged or your new phone may require a different SIM size than you thought. Call Metro at 1-888-863-8350 and describe what you see on the screen. They can check whether your SIM is compatible with your phone model and send a replacement if needed. Do not attempt to clean the SIM card with water or cloth, as this can damage the gold contacts.

Keep your old phone's SIM card after the transfer

Once you've moved your SIM to the new phone, your old phone will no longer have service on the Metro network. You can keep the old SIM card as a backup, but it will not work unless you move it back to a compatible phone. Metro does not charge you to keep an inactive SIM, and you can request a new one at any time if you need it.

If you plan to sell or give away your old phone, remove the SIM card first. This prevents someone else from accessing your account or phone number. You can also contact Metro to have the SIM deactivated for security, though this is not required if the card is no longer in any phone.

Frequently Asked Questions

Do I lose my phone number when I move my SIM card?

No. Your phone number is stored on the SIM card itself, so it moves with the card. Your Metro plan and account also stay the same. The only thing that changes is the device you're using.

Can I move my SIM card to a phone from a different carrier?

Not immediately. If the phone was locked to another carrier like Verizon or AT&T, it will reject Metro's SIM card. You must first contact the original carrier to unlock the phone, which is usually free if you've owned it for at least 60 days. Once unlocked, the phone will accept Metro's SIM.

What if I don't have a SIM ejection tool?

A straightened paperclip, a small safety pin, or even a thumbtack will work to open the SIM tray. The hole is designed to accept a thin object. Push gently — the tray should pop out with light pressure. Do not force it or use a sharp object that could damage the tray.

How long does it take to get a replacement SIM from Metro?

Standard mail delivery takes three to five business days. Metro does not offer expedited shipping for SIM cards. If you need service sooner, visit a Metro store in person — they can often provide a replacement SIM the same day.

Will I be charged for a replacement SIM card?

No. Metro does not charge for SIM card replacements, whether you order by phone, online, or in person. The card and shipping are included with your service.