How to Move Your SIM Card to a New iPhone

Moving your SIM card to a new iPhone takes minutes and requires no help from your carrier

Your SIM card holds your phone number and carrier account information. When you switch to a new iPhone, you physically move the SIM card from your old phone to the new one, then restart the new phone. The carrier recognizes the SIM in the new device and service continues. You do not need to call your carrier, visit a store, or wait for anything to activate — the phone works as soon as it restarts.

The process differs slightly depending on which iPhone models you own, because older iPhones use a full-size SIM card while newer ones use a nano-SIM (smaller). If your old phone is much older than your new one, you may need a SIM card replacement, which your carrier can mail to you in a few days.

Key Takeaways

You remove the SIM card from your old iPhone using the ejector tool (a thin metal pin that comes in the iPhone box), then insert it into the new iPhone's SIM slot.
After inserting the SIM, restart your new iPhone and wait for it to connect to your carrier's network, which usually takes one to five minutes.
If your old iPhone uses a full-size SIM and your new one uses nano-SIM, you will need a replacement SIM card from your carrier before you can transfer service.
Your phone number, carrier plan, and account stay the same — the SIM card simply tells the network which account to bill.
If the new iPhone does not recognize the SIM after restart, remove it, clean both sides with a soft cloth, and reinsert it.

Locating and removing the SIM card from your old iPhone

Every iPhone has a SIM card slot on the side of the device. On older models (iPhone 6s and earlier), the slot is on the right edge. On newer models, it is also on the right edge but the slot itself is smaller because it holds a nano-SIM instead of a standard SIM.

To remove the SIM, locate the small hole next to the SIM slot. Insert the SIM ejector tool — a thin metal pin included in your iPhone box — straight into the hole and push gently until the SIM tray pops out. Do not force it; if you meet resistance, you are pushing at the wrong angle. Remove the SIM card from the tray by lifting it out with your fingernail or the ejector tool.

If you have lost the ejector tool, a straightened paperclip or a small safety pin works. The goal is to push the internal spring that releases the tray, so any thin metal object will do.

Inserting the SIM card into your new iPhone

Locate the SIM slot on your new iPhone (right edge, same as the old phone). Use the ejector tool to open the SIM tray by inserting it into the small hole next to the slot and pushing gently until the tray pops out.

Place your SIM card into the tray with the gold contacts facing down and the cut corner aligned with the cut corner of the tray. The SIM will only fit one way, so if it does not slide in smoothly, flip it over or rotate it. Gently push the tray back into the slot until it clicks.

Do not force the tray. If it resists, remove it and check that the SIM is positioned correctly — the gold contacts should face the phone, not outward.

Restarting your new iPhone and waiting for network connection

After the SIM is inserted, restart your new iPhone. On iPhone X and newer, press and hold the side button and either volume button until the power-off slider appears, then drag it to turn off the phone. Wait 10 seconds, then press and hold the side button again until the Apple logo appears.

On iPhone 8 and earlier, press and hold the top (or side) button until the power-off slider appears, then drag it to turn off the phone. Wait 10 seconds, then press and hold the top (or side) button again until the Apple logo appears.

Once the phone restarts, it will search for your carrier's network. This usually takes one to five minutes. You will see "Searching for Service" or your carrier's name appear at the top of the screen. When the carrier name stays visible without "Searching," your phone has connected and service is active. Your phone number is now live on the new iPhone.

What to do if your SIM card sizes do not match

iPhones released before 2012 (iPhone 4s and earlier) use a full-size SIM card. iPhones from iPhone 5 onward use a nano-SIM, which is about one-third the size. If you are moving from an iPhone 4s or earlier to any newer model, your old SIM will not fit the new phone's slot.

Contact your carrier and request a replacement nano-SIM card. Most carriers mail replacement SIM cards free of charge within three to five business days. You can also visit a carrier store and request an immediate replacement if you need service sooner. Bring your old phone or account number so the carrier can confirm your account.

While you wait for the replacement SIM, your old phone will continue to work. Once the new SIM arrives, follow the steps above to insert it into your new iPhone and restart.

Troubleshooting when the SIM is not recognized

If your new iPhone restarts but still shows "No Service" or "Searching for Service" after 10 minutes, the SIM may not be making proper contact with the phone. Remove the SIM tray again and lift out the SIM card. Inspect both sides of the card for dirt, dust, or damage. Wipe both sides gently with a soft, dry cloth — do not use water or cleaning solution.

Reinsert the SIM into the tray, making sure the gold contacts face down and the cut corner aligns with the tray's cut corner. Push the tray back in until it clicks firmly. Restart the phone again and wait five minutes for the network connection.

If the phone still does not recognize the SIM after a second restart, the SIM card itself may be damaged. Contact your carrier and request a replacement. In the meantime, you can set up the new iPhone on Wi-Fi and transfer your data from your old phone using iCloud or a wired connection — you will just not have cellular service until the new SIM arrives.

Moving data and settings to your new iPhone

Transferring your SIM card moves only your phone number and carrier account. Your photos, messages, apps, and settings stay on your old phone unless you move them separately. When your new iPhone restarts after the SIM transfer, it will prompt you to set it up as a new phone or restore from a backup.

To keep your data, choose "Restore from iCloud Backup" or "Restore from Mac/PC" if you have a backup from your old iPhone. If you do not have a backup, you can create one now by connecting your old iPhone to a computer or signing into iCloud on the old phone and waiting for the backup to complete. Then restore that backup on your new iPhone.

If you have no backup and want to transfer data without one, you can use the "Migrate Data from iPhone" option during setup on your new phone, which transfers data directly from your old phone over Wi-Fi. This process takes 30 minutes to several hours depending on how much data you have.

Frequently Asked Questions

Do I need to tell my carrier I am switching phones?

No. Your carrier recognizes the SIM card, not the phone. When you insert your SIM into the new iPhone and restart, the network sees the same account and the same phone number. You do not need to call or visit a store. The only exception is if you need a replacement SIM card because your old one is a different size or is damaged.

What if I switch to a different carrier?

If you are moving to a new carrier, you will need a new SIM card from that carrier. Contact the new carrier and request a SIM card for your new iPhone. They will mail it to you or you can pick one up at a store. Once you have the new SIM, follow the same steps to insert it and restart your phone. Your old carrier's SIM will no longer work.

Can I use my old SIM card in a different iPhone later?

Yes. Your SIM card works in any iPhone that uses the same SIM size. A nano-SIM (used in iPhone 5 and newer) works in any newer iPhone. You can move it between phones as many times as you want. The SIM stays active as long as you pay your carrier bill.

What happens to my old iPhone after I remove the SIM?

Your old iPhone will no longer have cellular service because the SIM card is gone. It can still connect to Wi-Fi and use apps that do not require a phone number. If you plan to sell or give away the old phone, you should erase it first to remove your personal data. Go to Settings > General > Reset > Erase All Content and Settings.

How long does it take for service to work on the new iPhone?

Usually one to five minutes after restart. The phone searches for your carrier's network and connects automatically. If it takes longer than 10 minutes, try removing and reinserting the SIM card, then restart again. If service still does not appear, contact your carrier to confirm your account is active.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.