(Revised on July 6, 2022)
A SIM, or subscriber identity module, card is used to store all information pertaining to contacts, messages, and other things. The SIM card enables you to take advantage of a number of services that the telecom providers (Reliance Jio, Airtel, Vodafone-Idea, and BSNL) have made available to your device.
It is important to note that users frequently receive the warning "SIM not supplied" when they insert a fresh SIM card into their phone. The similar notice also appears when your SIM is not active, as well. You can check or fix this problem, though, in a number of ways. Therefore, you must follow these steps in order to assist you in learning how to solve this problem.
Step 1: First, you need to restart your phone to remove the network congestion. So, it is suggested to restart your mobile phone before trying other methods and there are high chances that the error message will be removed.
Step 2: In case restarting doesn’t solve the issue, then you have to insert your SIM again. In case SIM is not inserted properly. In fact, there are chances that you are facing network-related issues. However, you have to check before inserting the SIM. There might be a case where you have to change the SIM if you are receiving the same popo message on the other phone too.
Step 3: You also need to check the SIM activation. Notably, a new registered SIM card takes 24 to 48 hours the activation. So, this message usually appears at the time.
Step 4: Even after applying all these steps your issue has not been resolved, then, you need to call your telecom operator as there can be an issue at the server end that can be only resolved from their end.
