When 5630XM sends a text message, the arrow in the upper right corner disappears?

Sweating. That's the symbol when it was sent. If your mobile phone is in arrears or the center number is wrong, it can't be sent out, and the symbol similar to the arrow you said will always exist. At this time, you can find the information in the outbox and prompt when to resend it.

As long as it can be sent out, on the contrary, the symbol is always there, and your message cannot be sent out.

So can the information be sent out?