For many years, mobile phones received cellular service through a physical SIM (subscriber identity module) card that connected your handset to your phone carrier. These physical SIM cards made it ...

Small, secure, and energy-efficient–the iSIM is the next generation of the SIM card. But what exactly is behind this ...

SIM cards have been an integral yet forgettable aspect of owning a smartphone over the past few decades. For most users, the SIM card defines the basic commercial relationship they have with their ...

We independently review everything we recommend. We may get paid to link out to retailer sites, and when you buy through our links, we may earn a commission. Learn more› By Ryan Whitwam Most people ...

To develop a robust and inclusive framework, TRAI issued a Consultation Paper on 4 July 2025 seeking comments and ...

Forbes contributors publish independent expert analyses and insights. Zak Doffman writes about security, surveillance and privacy. In between reports of increasingly sophisticated nation-state ...

Stephen is an author at Android Police who covers how-to guides, features, and in-depth explainers on various topics. He joined the team in late 2021, bringing his strong technical background in ...

Do you get the error message “No SIM Card Detected” or “No SIM Card Installed” after inserting a SIM card into your phone? This problem often occurs when you ...

TRAI has proposed a regulatory framework for using foreign SIMs in IoT and M2M devices intended for export, simplifying the ...

The "No SIM Card Detected" error can be a frustrating issue for smartphone users, disrupting essential functions like making calls, sending texts, and accessing the ...