please help me!!!

[Beig]

Hi.

I can not send text sms to all number, but receiving sms.  

1- I check sms center number

2- I change sim with new one.

3- I reset my mobile to reset factory.

please help me.

[Alexander1]

Hi, 

If you have the possibillity I would suggest that you try a SIM card from another network provider. If you can't or if the behavior persists, I suggest that you have your phone examined by a service center. Please contact your local Xperia support team for more information:

http://www.sonymobile.com/global-en/support/contact-us/