My 3230 can't save the messages sent. What should I do?

Well, there are two ways, you can try.

1, grid machine, the method is *#7370#

Note that both the business card A and the short message will be lost. Unless you install business card backup software, it is easy to be found.

2, if the lattice machine doesn't work, it is hard chromium. Methods Self-examination.

Note: Both methods are risky. Please learn more first. Use with caution.