On July 13, “Tianjin Radio and Television” appeared in the headlines. A netizen wrote: “Located in Tianjin, today's class had no signal from 14:20 until now, all the radio and television cards in class have no signal, can't check in, and can't make any messages or SMS calls.” China Radio and Television customer service responded: There was a sudden network failure throughout Tianjin. Mobile phone calls and networks were unusable. Technicians were undergoing emergency repairs, and the recovery time was uncertain. Staff at the local radio and television business office responded that the optical cable was damaged and is now back in use.

On July 13, “Tianjin Radio and Television” appeared in the headlines. A netizen wrote: “Located in Tianjin, today's class had no signal from 14:20 until now, all the radio and television cards in class have no signal, can't check in, and can't make any messages or SMS calls.” China Radio and Television customer service responded: There was a sudden network failure throughout Tianjin. Mobile phone calls and networks were unusable. Technicians were undergoing emergency repairs, and the recovery time was uncertain. Staff at the local radio and television business office responded that the optical cable was damaged and is now back in use.