TL;DR: How do I know if my phone is unlocked? You can contact your carrier to see if your phone is eligible for unlocking. Another way to check is to insert a SIM card from a different provider. If it ...

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 ...

Your phone's SIM card allows the device to make calls, send texts, and connect to the internet. The SIM card provides a phone number that identifies your device on the carrier's network, whether it's ...

(Subscriber Identity Module lock) A function in GSM cellphones that restricts the phone's use to a particular cellular carrier identified by a SIM card. SIM locks are used to ensure subscribers finish ...

Update, October 19, 2018 (12:20PM EST): It’s not clear whether it’s from customer backlash or if it was always planned this way, but Verizon is apparently remotely SIM-unlocking all Google Pixel 3 ...