Invalid Sim Card Airtel. You can also use the airtel no check code to know your mobile number without any problem. If you get an alert that says invalid sim or no sim card installed, follow these steps.
Online recharge prepaid & dth through airtel payments bank to get exciting cashbacks. If your sim is invalid due to expire time of validation then it is hard to get same number on another sim card. Enable aeroplane or flight mode and observe for some time.
Know more about india's first open network.
Help needed asap, as i. This information will be required in the further steps for unlocking the airtel sim card. I was using this connection for the past 3 year and had no problems with it. How do i fix my invalid sim card on my lg phone?
