If you don't see your cellular line in Settings > Cellular, you should set up an eSIM or insert a physical SIM card. If you're using a physical SIM card, remove the SIM card and put it back in. If your SIM card is damaged, doesn't fit in the SIM tray, or you transferred your physical SIM card from another device, ask your carrier for a new SIM The term “eSIM” simply means an embedded SIM card. There are no physical SIM cards involved and no physical swapping over required by you. The information on an e-SIM is rewritable, meaning you can decide to change your network operator on your iPhone. In fact, you can store up to five virtual SIM cards one eSIM at a time. The Apple iPhone SE 3 (2022) indeed has Dual SIM support. This means you can have two active cellular plans at the same time. This iPhone comes with a Nano SIM slot and a built-in eSIM. Michael Black. It takes a nano-SIM. If you’re having it shipped preconfigured for your cellular service, that service may be setup on the eSIM instead of including a physical SIM (my AT&T iPhone 13 Pro order says it will ship with my AT&T service setup on the eSIM and no physical SIM will be included). † The China-only iPhone SE (2nd Gen) , iPhone 12 mini , iPhone 13 mini , and iPhone SE (3rd Gen) only have one physical Nano SIM card slot. These iPhone models do not support an eSIM. The difference between Mini SIM, which often is just called a SIM card, as well as the newer Micro SIM and Nano SIM standards largely is size. If you are not An eSIM is a digital version of the physical SIM card—identifying your device virtually to provide network connection. It’s programmable remotely via software and is built into newer smartphones, meaning you wouldn’t have to go purchase a new SIM card if you wanted to swap phones or wireless carriers. eSIMs are used in tablets, smart watches, drones, and even cars. If you suspect that hardware problems are to blame for your iPhone not connecting to your cellular network, try these tips. 1. Re-Insert Your SIM Card (Physical SIM Cards Only) Use a SIM pin, paperclip, or safety pin to eject the SIM tray on the side of your iPhone. Carefully remove your SIM card and examine it for damage or watermarks. You can only have one e-sim active at any one time. See here: Using Dual SIM with an eSIM - Apple Support. You can store more than one eSIM in your iPhone, but you can use only one at a time. To switch eSIMs, tap Settings, tap either Cellular or Mobile Data, and then tap the plan you want to use. Then tap Turn On This Line. View in context. eAyyjTy.