Why can t my Xiaomi phone switch from 2G network to 3G

Hi! Hello, the problem with your phone suggests you to try it after upgrading the system to the latest development version.

Upgrade to Development Method:

1. It is recommended that you use Xiaomi Mobile Assistant to back up your important data, or you can also use third-party backup software (contacts, text messages, ** and other data).

2. After backing up the system, empty the data: in the shutdown state, press and hold the volume plus key and the shutdown button, and let go when the boot screen appears, and you can enter recovery. Go to Recovery >Chinese>> >> Clear Data >> Empty all data.

Then flash the machine according to the flashing tutorial, and it is recommended to use the line brush development version system.

3. Please flash according to the flashing tutorial, of which the sixth way is line brushing:

Look at the E or 3G of the letters on your signal bar, if it is E, it is 2G, and there is also a possibility that the 3G network signal on your side is poor, as if you access 12M broadband and the result is only about 200K.

<> experience introduces how to switch to a 2G network in Xiaomi mobile phones?

Find Settings on the desktop of your Xiaomi phone and click on it.

Find Dual SIM & Mobile Network and click on it.

Find the SIM card you're connecting to the internet and select it.

Then click on the network type selection.

Then in this page, you can choose to use only the 2G network, and then your phone can switch to the 2G network.

Summary: 1. Find the settings on the desktop of the Xiaomi phone and click on it.

2. Find Dual SIM and Mobile Network and click on it.

3. Find the SIM card you are connecting to and select it.

4. Then click Network Type Selection.

5. Then in this page, you can choose to use only the 2G network, and then your phone can switch to the 2G network.

Phone model: Redmi Note 3

1. Turn on your phone, find the settings option on the desktop of your phone, and click to enter.

2. In the settings interface, click All Settings, find the mobile network option, and click to enter.

3. In the mobile network interface, find the network type selection option and click to enter.

4. In the network type interface, you can see the options to use only 2G and only use 3G, and select Use only 2G.

The mobile phone always shows 2G network may be because the 4G base station network signal in the area where the mobile phone is located is poor, so it cannot connect to the 4G network;

If there is no problem with the signal of the base station of the Qingqiguo network, it is caused by the setting of the mobile phone itself, you can follow the following steps to carry out the spinal operation:

1. Take the MIUI system as an example, open the settings application interface, and click the "Dual SIM Mobile Network" setting item;

2. Next, click and select the corresponding SIM card on the Sakura Errand page;

3. Next, click the "Network Type Selection" setting item on the opening page;

4. Finally, select the 4G network as the preferred network type.

If the mobile phone supports 4G, 3G and 2G networks, then the general network switching is automatically realized by the mobile phone, and the failure to switch may be due to the following reasons:

1. The network coverage of the location, the network coverage is good, and the mobile phone will automatically optimize the 4G network to provide services, but if the 4G signal is not good at the location and there is only a 2G signal, then the mobile phone can only provide 2G network;

2. After the traffic reaches a certain amount, the speed is limited, at this time, even if the network signal is very strong at the location, affected by the speed reduction, the network speed provided is also very slow, but at this time, the network speed is only low, and it will not be directly displayed as a 2G network.

3. There is also a possibility that the mobile phone is set up in a problem, you can check the mobile phone settings and whether the mobile phone is limited to the network.

The 2G network is about to stop, and the 4G network is currently widely used.

Generally speaking, when you have a 4G signal, it is the 4G traffic used, but now when the 4G network is fully covered, you need to go to the inside of the mobile phone to set, give priority to the use of 4G network, 2G 3G to turn off, and then set up to only use 2G traffic, look for your mobile phone settings, due to the different mobile phones, I can't point out in detail in the settings of your mobile phone.

Now it's all automatically recognized, if it's a 4G signal, if it's good, use 4G directly, if the 4G signal is poor, go directly to 2G and so on.

Method steps.

1 6 Step by Step Reading.

Swipe the screen on your phone, find the "Settings" icon, and tap it to enter the phone settings page.

Long Figure 2 6 In the phone settings page that opens, tap the menu item "Dual SIM and Mobile Network".

Long Figure 3 6 In the Dual SIM and Mobile Network page that opens, click on the card menu item you want to set.

Figure 4 6 then in the SIM card information page that opens, click on the "Network Type Selection" menu item.

Long Figure 5 6 will open the network type selection page, if the current network is good, you can click the 4G network priority menu item, which can speed up the Internet access.

Long picture 6 6 If the current signal is not very good, you can click on the menu item to use only 2G network, so that although the Internet speed is much slower, the effect of playing ** is much better.

Smartphones are automatically switched, and if there is 4G, the 2G or 3G network will not be displayed. The elderly machine does not have this function, I don't know what kind of mobile phone you use, no, you go to the mobile phone store to ask what the reason is, maybe there are other reasons.

The network is automatically selected, your phone may be broken, just go to the repair shop to fix it.

First of all, open the phone settings first, see if the network is preferred, whether it is fixed and choose 3G first.

If not, change the location to see if this is still the case, if it is still like this, you can go to the nearby mobile phone store to see if there is a problem or call the customer service of this card, sometimes it will be the reason for individual cards, such as the card network speed of mobile telecom Unicom is not the same.

Then you may be restricted, that is to say, your mobile phone knows that it supports mobile wave or Unicom or Telecom's number, and other numbers are not supported, you may wish to take your mobile phone to the place where you bought it and ask for the specific situation.

The mobile phone 2G or 4G network is automatically cut, if there is 4G, it will not show 2G or 3G, network.

Could it be that your location only has 3G network coverage.

The mobile phone switches 2G or 4G automatically, and if there is 4G, it will not display 2G and 3G, which all depends on the signal strength of the mobile phone in the coverage area of the signal tower.

Your SIM card should be exclusive.

Smartphones can brake and convert, the elderly machine does not have this function, I don't know what kind of mobile phone you use, no, you go to the mobile phone store to ask what the reason is, maybe there are other reasons.

If you can't switch it, you can go to the mobile phone store to consult Xun is the mobile phone where there is a problem.

The mobile phone may not work with the touch screen, or it is dead, it is recommended that you turn off the phone and restart it, if not, you need to take it for repair, to see what the reason is.

This should be switched by the network itself

Now they are all using the 4G network, do you pay for it?

The phone is broken, why else? Otherwise, there is no network.

It may be set, take a look at it yourself in the phone settings, data settings.

Generally, dual-SIM phones can use Settings - Dual SIM and mobile network - Preferred network type - and then select 3G, and single-SIM Xiaomi phones can press and hold the data connection button in the notification bar to enter the settings interface and repeat the operation mentioned above.

The following is the specific operation of Xiaomi mobile phone 4G to 3G:

1. Turn on your phone and go to Settings.

2. Click on the first mobile network setting.

3. Then go to the network type selection and select 3G first.

The steps to switch from 4G to 3G for Xiaomi phones are as follows: [Settings] - [Mobile Network] - [Network Type Selection] - [3G Network Priority].

Long press the data button on the notification bar, tap the SIM card you want to operate, and then select the network type.

Set to turn off 4G, it's 3G.

Here's how to switch cellular network types:

1. Open the mobile phone [Settings];

2. Click to open [Mobile Network];

3. Click [Network Type Selection] and select [Use 2G network only].

First find and tap the "Settings" button to enter the settings interface of your Redmi phone.

Method Step 2

Click on the "All Settings" option, find the "Mobile Network" option and click on it.

Method Step 3

Click on the "Network Type Selection" option to enter.

Method Step 4

There are three options: "3G network first", "2G network only (more power saving)", and "3G network only", so you can choose according to your local network conditions.

Hi! Hi dear, 2G and 3G networks are switched to each other, and generally there should be 3G signals on the streets of downtown spots in cities above the county level.

To use a mobile 3G network, the following three conditions must be met:

The phone must support mobile 3G;

The location is covered with mobile 3G;

Users enable mobile 3G**;

If you meet the above three conditions, you can use the mobile 3G network, and if you don't meet any of them, you can only use the mobile 2G network, which is the so-called 2G and 3G network switching.

The general mobile phones are indeed as you said, most of them support 2G, but recently they are all smart 3G mobile phones, and they are relatively cheap. The 2G and 3G networks are automatically switched according to the strength of the signal! When E appears after the signal in the upper left corner of the mobile phone, it is using the 2G network, and when G appears, it is using the 3G network!

Hope it helps!