Samsung note4 cannot send text messages, what’s going on?

1. The SMS center number is set incorrectly, please re-enter the correct SMS center number;

2. There is no signal or the mobile phone battery is low;

3. The system is busy due to the peak SMS sending volume during holidays. It is recommended that you try again later or avoid the peak sending period;?

4. The sending format is incorrect. If sending a text message to a PHS user, the area code must be added before the number;

5. The text message sending time exceeds 24 hours;

6. The mobile phone has blocked the text message sending function;

7. Being included in the SMS blacklist;

8. The number balance is insufficient;

9. The SMS inbox and sending box are full.

If the above reasons still cannot be solved, you can contact the local customer service or go to the business hall to confirm whether the SMS function is enabled and let the staff handle it.