The problem of sending text messages and answering phones on Nubian Daniel Z7 Max's mobile phone.

Hello, if you can't send SMS, please enter "SMS center number" in SMS settings, and you can refer to the link behind to modify the center number. (/article/93f9803fe99f9E46f55ca.html) In addition, if you can't make a call, is the mobile 4G network locked? If yes, please go to * # * # 4636 # * * to unlock it. Did you buy a new mobile phone? Where is your purchase channel? Expensive electronic products are recommended to be purchased in official website, which is more secure. Thank you for your support to Nubia. I hope my answer is helpful to you. I wish you a happy life.