The mobile phone network suddenly became very stuck.

The reasons why the mobile phone network has become very stuck are:

The mobile phone is poisoned, so you can brush it or download anti-virus software.

There is too much rubbish in the mobile phone system. Release the memory and check how much memory the phone has, not the memory of the memory card. You can delete short messages, especially multimedia messages, to free up memory.

Network speed problem, sometimes it is the network speed problem of operators, sometimes it is the peak of network access, and congestion causes network speed to slow down.

The meaning of mobile phone network mode includes: dual mode? -GSM mode and CDMA mode. Simply put, the mobile mode is GSM. In the past, Unicom's 133 card was in CDMA mode, and now CDMA is incorporated into telecommunications. 3G- refers to the cellular mobile communication technology supporting high-speed data transmission. 3G services can transmit voice and data information at the same time, and the rate is generally above several hundred kbps. At present, 3G has four standards. CDMA2000，WCDMA，TD-SCDMA，WiMAX .