If you’re thinking of moving to a new network, and want to keep hold of the same iPhone, you may hit a snag: the device is locked to your current carrier and can’t be used with any other company.

If you want to take your Galaxy S10 and use it on any carrier network, you’ll have to do a SIM unlock first. In this guide we’ll explain how to SIM unlock the Galaxy S10 or Galaxy S10+ and why you’d ...