1. Make sure that you have correctly inserted the SIM card – The SIM card port cover has an illustration of the required SIM card orientation.
IMPORTANT NOTE – Do not insert the SD card to the SIM slot, this may damage the SIM card reader contacts and the SIM card will not be readable. The device will need to be returned to the Service Center.
2. If correctly fitted and the message is still displayed, please clean the contacts of the SIM card using a dry cloth
3. If still not being recognised please call your Network provider to ensure the SIM card has been enabled or to check if they have any further instructions