The mobile phone jammer purchased by the customer earlier only contains 4G, and the 5g frequency jamming module of the operator is not installed. With the gradual popularization of 5g signal, the mobile phone jammer without 5g signal frequency interference can not interfere with the mobile phone 5g signal. Therefore, the mobile phone jammer should be upgraded for 5g signal frequency interference.

According to the 5g signal frequency division of operators, different countries and regions have also increased the frequencies used by mobile phone 5g signals of different frequency bands, including 700m, 2.6g, 3.3g-3.7g, and 25g-27g of higher frequency bands. In other words, the original mobile phone jammer needs to be upgraded to interfere with 5g signals. If the original mobile phone jammer has room for upgrading, It can be upgraded on the basis of the original mobile phone jammer. Otherwise, it needs to be equipped with a special jammer for 5g signal interference to realize the interference of mobile phone 5g signal. It can also be judged according to different use sites that the mobile phone jammer needs to increase the number of 5g signal band interference modules.