📶 How Does a SIM Card Work in a Mobile Phone? | SIM Card Technology Explained! 🔍 Description: Have you ever wondered how a SIM card works in a mobile phone? This tiny silicon chip plays a major role in network connectivity, authentication, and security. In this video, we’ll break down the working of SIM cards, how they communicate with network towers, and how they keep your calls and messages secure. Watch till the end to understand the technology behind SIM cards and don’t forget to like, sha

How To Check If Your SIM Card Is Working