- Navigate to Settings > Phone > Blocked Contacts.
- Select Add New.
- Choose a contact to block.
Whether you've bought a new iPhone and need to switch out your SIM cards, got a new SIM card for your iPhone, or are doing some much-needed troubleshooting due to recent cellular service issues, you will need to be able to remove your SIM card. Unfortunately, removing a SIM can be tricky at times, especially if you have never removed your SIM card or don't consider yourself very tech-savvy. Don't be intimidated by the SIM removal process, I promise it is easier than it looks. All you need to properly remove your SIM card is your iPhone and a SIM removal tool. Every time you buy an iPhone it comes with a SIM removal tool, which looks a lot like a paperclip. A lot of iPhone users accidentally throw out this handy tool. If you no longer have a SIM removal tool, use a paperclip or the back of an earring. Do not try using anything sharp or easily breakable. Now that you have everything you need to remove your SIM card, let's get started!