An iPhone can be used as an iPod without a SIM card, but a SIM card is at least necessary for the initial activation of the device. Post-activation, a SIM card is necessary if users wish to restore an iPhone.
Without a SIM card, users will receive a pop-up message every time the iPhone is rebooted.
Activating an iPhone to be used as an iPod is a relatively simple process. First, locate a SIM card that came from a previously-activated iPhone. Insert the SIM card into its slot. Then, connect the iPhone to iTunes on a computer with an Internet connection. iTunes then automatically activates the device, and it is ready to use as an iPod, either with or without a SIM card.Learn More
To restore your iPhone from an iCloud backup, first update your device to the latest version of the iOS operating system. Ensure you have a backup in your iCloud. If you have a backup, reset your device, and restore the device from the iCloud backup.Full Answer >
To set up a personal hot spot using an iPhone, access the settings application and then turn the "personal hot spot" function on. Before turning this setting on, check with your carrier because some users must pay fees for the ability to use the iPhone as a personal hot spot.Full Answer >
If a cell phone user receives a message that their SIM card registration failed, it means that either their cell phone service is not activated or that the SIM card is not correctly installed in the phone. It is also possible that the SIM card is defective.Full Answer >
According to Consumer Cellular, a SIM card is usually located under the battery in a cellphone. This may vary depending on model and maker. A SIM eject tool is sometimes necessary to remove the SIM card.Full Answer >