What's wrong with China Mobile Shenzhen Branch now?

I don't think it's the network, but there are too many mobile phones there. You didn't think about it. Many people send text messages and make phone calls during the Spring Festival, and it usually takes a little time to receive text messages, so it is said that those mobile phones scattered the signals, resulting in poor signals. If the signal is poor, then he didn't smash his own brand.

After reading your supplement, it is also a vicious competition of China Unicom, so the mobile signal is blocked.