Why can't Guangdong Unicom 4G receive the school newsletter? When can I open it?

Guangdong Unicom's 2G, 3G and 4G mobile phone users can handle the school newsletter service. 201April 508, 4G users have been able to open the school newsletter service, but the business scope of this service is limited to Guangzhou, Dongguan, Jiangmen, Shantou and Zhaoqing. If you haven't received the related SMS message of the school newsletter, please confirm the school newsletter service on your mobile phone at 1. 2. Does your mobile phone model not support SMS? 3. If the mobile phone number does not belong to Guangdong Unicom users or the balance of the stored value card is insufficient, you cannot accept SMS; 4. Not turning on the phone for a long time may also lead to the loss of short messages. 5. Deletion by mistake: As the received SMS number is the enterprise code (not the mobile phone number), it may be deleted by mistake or blocked as harassing SMS. If all the above reasons are not excluded, it is recommended that you contact customer service at the place of origin.