Why is there no SMS reminder when entering Jinan?

There are several reasons why the cell phone signal is slow:

1, dual card 4G.

In everyone's impression, it is very necessary to turn on the dual-card 4G function. After all, in some places with bad signal, when the good network signal is bad, you can also use the traffic of another card. But what you need to know is that when using dual-card 4G, the secondary card will regularly interact with network signals, which will actually have a great impact on the network speed of the primary card at some time. The closing method is also very simple: open the settings-wireless network or mobile network-dual card management-close the dual card 4G.

2. The mobile phone card has been used for too long.

Some users will get used to using a mobile phone number for a long time in their lives, but you should know that although the mobile phone number is lifeless, the mobile phone card is alive. If the mobile phone card is used for a long time, its internal chip will be worn and the contact will be poor, especially when we are using small cards now, which is more likely to happen. If this is the reason, I suggest you change your mobile phone card at the operator's outlet in time.

APN。

I believe many friends have seen information on how to improve the network speed by adjusting APN on the Internet, but what you need to know is that this is only possible in a few cases. In most cases, adjusting APN privately will not only improve the network speed, but also reduce the network speed. Don't be too clever to be misunderstood. The method of resetting APN is also very simple. Find the Access Point Name in Wireless Network or Mobile Network in Settings, and then find Reset to Default.