The representative offered to send Emily a replacement SIM card, which would arrive within a few business days. In the meantime, Emily could try using a temporary SIM card provided by the carrier. Emily agreed and provided her shipping address.
She decided to try her SIM card in a friend's phone to see if the issue was with her phone or the SIM card itself. After swapping the SIM cards, Emily's friend's phone also displayed the "Invalid SIM" error message. This suggested that the problem was with the SIM card. my phone is saying invalid sim
