To check if your Android phone is unlocked, try swapping in another SIM card or test your network settings. If calls work, ...

Have you ever wondered exactly how a SIM card works? We'll help you understand why your phone needs one and what they do to keep you connected.

/ Android News Sponsored Software Review: iSkysoft Toolbox For Android – Recover Android Data, Unlock SIM Card, Root Android & More By Justin Diaz Updated April 18, 2018 ...