Why can Sony z2 mobile phone send messages, but can't receive short messages?

If you don't want to toss, the most convenient thing is to brush the official rom to troubleshoot the system.

If you don't want to brush, find the reason slowly. Have you installed optimization software and system software?

Then in the settings, look at each related option.

Are you a new machine or did this problem suddenly appear normally before? If it is a new machine, please return it. My friend's z 1 has been used for almost two years, and it has never appeared.