This mobile phone Kaka is not activated, and you can also send text messages.

You can't send messages without an activated mobile phone card. If you bought it in a small shop outside, although the card has not been taken down, someone has sold it through other systems, such as a special system in the computer. You can put the card on your mobile phone and check the online time or activation date, so that you can accurately know whether the card has been activated in advance. I hope it helps you.