Nut mobile phone can't send text messages

You can go to the security center to clean up the garbage, restart your mobile phone and re-plug the SIM card. If you still can't find it, you can log on to the official website of Hammer Technology (www.smartisan.com or t.tt) by computer and submit the after-sales service request (Personal Center-After-sales Service), and the staff will contact you actively.

If you are satisfied with this answer, please accept it. Thank you.