Head into Settings > Phone > SIM Pin. Toggle SIM Pin on. Note that you may need to contact your carrier to figure out what the default pin is if this is your first time setting this up. After entering ...

Samsung's Galaxy smartphones allow you to protect your personal information by locking your SIM card with a PIN. While you should choose your code with care, you always have the option to change your ...

If you need to find out your iPhone's carrier without a SIM card installed, you can do so through the Settings app. Usually the cellular carrier name will be displayed at the top of your iPhone, but ...

While most people seem to manage just fine with a single SIM card in their smartphone, some -- especially travelers, who can save money by fitting a local SIM card into their handset -- love the ...

Have you ever gotten a new phone only to find out it’s locked to a specific carrier? This often happens when you purchase a subsidized phone from a carrier. The carrier locks the phone so you can’t ...

It may be useful to change the PIN code of a newly purchased iPhone (if the PIN is set to 0000 by default for example) or for safety reasons to protect from fraudulent use of your phone in case of ...

At some point in time, you may need to know your iPhone’s serial number and SIM number. And if you don’t have your own phone number memorized, well, it goes without saying that you’ll need to look ...

I’ve been asked for my iPhone’s SIM number. How do I find it? How to find the SIM number on your iPhone: What is a SIM number? Your iPhone’s SIM number is technically called the ICCID, which stands ...

A SIM card, or subscriber identity module card, is essential component of any phone. It connects your device to a cellular network and stores vital information, including your phone number. Many ...