You can set a SIM PIN code to prevent people from accessing data such as contacts stored on the SIM card without your permission, even if they physically have your phone and then steal the card ...

If you’ve bought a cellular iPad from someone other than Apple, you may later find that the iPad is locked to a particular network. If you insert a SIM from a ...

Done with a long term contract or looking to switch network carriers but keep the phone? Here's everything you need to unlock your Vodafone UK phone!

On the other hand, you cannot reset your PIN if you have done an M-PESA transaction within the last 24 hours or initiated a SIM replacement in the last 7 days before requesting to reset the PIN.