Steven John/Business Insider You can't make or receive a call without a SIM card in your iPhone.
- Remove a SIM card from one iPhone and move it to another device in order to make and receive calls there to your existing phone number.
- iPhone SIM cards only store small amounts of customer data, including your phone number and billing information.
- They do not store contacts, images, apps, and other data, which must be transferred separately when you get a new iPhone.
Whether you're selling your old iPhone, trading it in for a new model, or sending it away for repairs, it's important that you remove the phone's SIM card.
A SIM card - or Subscriber Identity Module card - is both a phone's ID tag and its key. SIM cards store your phone number, and without the card in place, you cannot make or receive calls.
Transferring your number and billing data from one iPhone to another is as easy is popping your SIM card into the new device. (You will have to transfer your contacts, photos, apps, and other data separately.)
How to remove the SIM card from an iPhone
First remove your iPhone's case (if you have one) to expose the phone itself. Then get your SIM card ejection tool, which you can purchase online. Or better yet? Grab a paperclip.
1. Locate the SIM card tray; it will be on the right hand side of your phone (as viewed from the front) and is shaped like a long, narrow oval with a small recessed hole.
Steven John/Business Insider The SIM card tray on the right side of your iPhone.
2. Gently press the tip of your ejection tool or paperclip into the hole and press into the bottom of the SIM card tray until the tray pops out a bit.
Steven John/Business Insider Press your paperclip or ejector tool into the hole of the SIM card tray.
3. After the tray pops open, slide it out and remove the small SIM card laying there within.
Steven John/Business Insider The SIM card tray and SIM card, removed.
4. Reinsert the empty tray to ensure the phone maintains its resistance to dust and water damage.
(Note that iPhones newer than the iPhone 7 are reliably dust and water resistant, but only when intact; older iPhones are not safe around water.)
5. Follow the same steps to insert the SIM card into your new phone.
When should you remove your SIM card?
In the movies, the hero pops the SIM card out of his or her phone, ducks into a crowd, and disappears. In reality, your phone can usually be tracked even without a SIM card in place.
But it can't make calls, pull up contacts, or recall past SMS messages. So when you get a new phone, don't forget to pop your SIM card out of the old one and place it in the new device.
Removing a SIM card from an old phone is also a good idea even if you won't need it in a new device, as the card will be linked to your old phone number.
And before you have your phone repaired, spend the 30 seconds to remove your SIM card. SIM cards are not very expensive (and are even given out for free by many companies), but they do contain data that could lead to some costly problems if you lose the card or it falls into the hands of a scammer.