What happens if I don't have a sim tray?

If you don't have a SIM tray in your device, you won't be able to insert a SIM card, which means you won't have access to cellular networks for calls, texts, or mobile data. This can limit your ability to connect to the internet on the go, unless you're reliant on Wi-Fi. In some cases, you might still be able to use the device for other functions, like apps that don't require cellular service. However, for full functionality, you'll need a working SIM tray or an alternative device that supports eSIM if available.