I have a BV8000 Pro and I noticed for a few days that I can no longer send or receive SMS, although the calls work OK. I called the service provider, everything is OK. I put the card in other phones and they can send or receive SMS, so I deduced that this problem is only on my phone. It has enough memory space. It is interesting that only after the restart do I receive all the missing messages from the others. But I can't send SMS from this phone anyway. What more can I do?