Why can't the red rice phone send text messages?

Open the settings of SMS. Find the information center in the SMS settings. When you open it, you will see the number of the information center. If it is not a string number of +86, this is one of the reasons why sending a short message failed. The key step is to enter +86 13800 * * 500 in the number field of the information center, and then click OK.

Special note: enter the last three digits of the area code to which the number belongs. Then click resend on the message that failed to send. After modifying the correct information center number, you can send SMS immediately. If you don't understand the operation, you can call the operator directly to inquire about the corresponding information center number.

Mobile phones can't send text messages. I suggest you check the following steps to find out why:

1 It is recommended that you click SMS-Menu-Settings-Advanced Settings-SMS Center Number to reset.

I suggest you try to call your friend to see if you owe money.

I suggest you try whether other cards can be used normally when plugged into Xiaomi's mobile phone.

If it still can't be solved, please back up the data, enter recovery to clear the cache, user data and all data, and try to send SMS directly after entering the system without recovering the data.

If it still can't be solved, it is recommended to back up the data and try the latest development version.