How to upgrade the network speed of mobile 4g card (what if the mobile 4g signal is getting weaker)

In recent years, China has vigorously developed 5G technology, especially the speed of base station construction, which has been crushing the United States and occupying the first place in the world. According to the data given by the Ministry of Industry and Information Technology, the number of 5G base stations has reached 6.5438+0.7 million, which not only achieved 5G coverage in cities, but also reached 92% in towns and villages. Today's 5G network coverage is enough to meet the needs of most consumers. In addition, the daily use speed of 5G is 10 times that of 4G, so the 4G network is out of date.

Many people want to upgrade their 4G networks to faster 5G networks, so the question is: Do mobile phones need to be switched from 4G to 5G? Change cards? Or change the bag? Both China Mobile and China Telecom have given clear answers to this question, which can be understood in one sentence.

SIM card is a device used by mobile phones to receive and decode signals from base stations. Many people still remember that when upgrading from 3G to 4G, they have to go to the business hall to change their 3G cards into 4G cards. So if I upgrade from 4G to 5G, do I need to change my card?

In fact, there was a big misunderstanding when 5G was first built, and China Mobile specifically answered this question. China probably means that the technology and frequency band of the 5G network are brand-new, so you need a 5G mobile phone to accept it, but you don't need to change the card. If you use a 4G mobile phone, the 4G network speed will not be affected after 5G comes out. But what I want to say is that after the 5G network came out, many netizens reported that the 4G network speed is getting slower and slower, which is incomparable with the newly built 4G speed. I don't know if there are too many people in 4G on the network, or if the operator deliberately limits the speed and forces users to upgrade 5G. I'm afraid not. The reason is difficult to draw a conclusion.

However, China Telecom gave a different view. China Telecom released the White Paper on 5G Security in 2020, which pointed out that the 5G network used by 4G cards will have the security problem of unencrypted information transmission due to incompatibility. If the 5G card is not replaced, some 5G functions will be affected in the future.

From the perspective of the two operators, the 4G mobile phone card can use the 5G network, but there are some problems such as insufficient security and lack of new functions, which are not perfect.

Finally, talk about the package, whether it is a 4G card or a 5G card, and whether you are a 4G network package or a 5G network package. As long as you use a 5G mobile phone, you can access the 5G network. But if you use a 4G package, the operator will limit your 5G network speed to 300 m ... 300 m download speed is 37.5MB/s, which is several times that of ordinary 4G networks.

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To sum up, if you use a 4G mobile phone, you are not satisfied with your network speed. It is strongly recommended that you buy a 5G mobile phone and then don't upgrade the 5G package. After all, the 5G package is still very expensive. In this way, you can also enjoy the convenience brought by the 5G network. If the subsequent operators develop new functions for 5G, you only need to go to the business hall to replace a 5G mobile phone card. Now there is no need to change the card at all.

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