A SIM card that doesn't work can cause a lot of problems. Here's how to fix the "No SIM card" error on your Android phone.

Today, cell phones can operate without a SIM. But can a phone also be tracked with no SIM? As you might have guessed, the answer is yes. Moreover, it is much easier to track a phone without a SIM.

They started out with dual-SIM adapters, and have now progressed to SIM adapters that allow you to have four or even five SIM cards in your phone.

Telegram now allows you to create an account without a SIM card Telegram did not move to a normal log in, or anything of the sort, though.