The mobile phone is LG-T3 10 new, so you can't send short messages, but you can receive them. There is a yellow envelope with a red exclamation mark in the upper right corner of the phone! The center

The mobile phone is LG-T3 10 new, so you can't send short messages, but you can receive them. There is a yellow envelope with a red exclamation mark in the upper right corner of the phone! The center number is no problem! Urgent! There are several possibilities that the mobile phone can't send short messages: 1. Your mobile phone may be in arrears, please recharge it! 2. Where you are now, the signal is poor or there is no signal. Please go to an open place or a place with good signal! 3. You have changed the address of the information center. The address of the information center is +86 1380 (area code) 500. For example, the address of the information center of Shenzhen Mobile Card is +86 1380075500. Go to the address of the information center, and you will find it there. Once set, you can send text messages normally! I hope the above answers can help you!