The No SIM card detected error happens due to displaced card position, software issue, or SIM network issue. Considering the different causes of the error, here are ...

When that happens, you might see the "your phone is not registered on a network" on your screen, which means your SIM card can't connect to your wireless provider's network.

A SIM card stores your subscriber identity data, which is needed to connect to a carrier's network. But do you still need one in 2025?

Since the “SIM Card not inserted” error is not supposed to occur when the phone is in factory state, it’s a helpful way to determine if the problem is software- or hardware-related.

A No Sim Card issue is caused when your phone either fails to recognize the Sim card or can’t read any information it contains.

If your phone suddenly won't recognize your SIM card, don't panic. There are a few things you can do to try and resolve the problem. Here's what to do.

If necessary, you may also request a new SIM card replacement. Alternatively, you can just schedule a visit to a service center and have your phone diagnosed by a technician for hardware damage.

Your Android smartphone will totally work without a SIM card. In fact, you can do almost everything you can do with it right now, without paying a carrier anything or using a SIM card.