If you can't make a call or if you see an error message that your phone's SIM card is not working, there are several ways to troubleshoot the problem.

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Apple’s latest iPhone Air has taken a bold step forward in mobile technology – it’s an eSIM-only device. That means there’s no slot for a physical SIM card, anywhere in the world, including India. For ...

A new teardown confirms Apple killed the SIM tray in the iPhone 17 lineup, using the space to pack in bigger batteries. The shift shows Apple squeezing every bit of space out of its devices while ...

With smartphones, where Apple leads others often follow - so it launching an iPhone this week without a traditional Sim card is raising questions over the future of a very familiar piece of phone tech ...