OPPO mobile phone is a four machine network, why is the Internet a two machine network,

The card is 2G, you have been scammed.

The phone does not support 4G

The phone supports 4G, but it doesn't turn on 4G

There is no 3G or 4G network in your local area, and the 4G network charges are high, and it is generally temporarily used in first-tier cities, and other places are not laid for the time being.

Up to now, some places have not yet covered 3G, you don't want to think about 4G traffic, not ordinary people can afford it, after the mobile phone is turned on, not to mention 100 trillion in less than ten minutes, 300 trillion can be drunk dry for you.

I don't know if you are using Unicom or a mobile card, if it is a 2G network, your mobile phone does not support the operator you are using now!

For example, if you use a Unicom card, it means that your mobile phone only supports mobile networks, and you can play ** if you are Unicom, but you can only use 2G network to access the Internet!

Do you understand when I say that?

Card question for it. The mobile phone is custom-made. It is necessary to use the custom-made card. It's like my phone is a Unicom custom machine. With a mobile card. The speed of the Internet is rubbish.

The 4G network doesn't get to you.

The 4G network must be in the area covered by the 4G network.

Or maybe you only have 2G internet in that place.

In the settings, change the 2G port to 4G

Mobile phone Unicom card? Or is it the other way around?

Are you using a 4G SIM card?

If the mobile phone cannot access the Internet normally, you can troubleshoot according to the following conditions:

Situation 1] The contact between the SIM card and the metal contacts of the mobile phone is insufficient, and the SIM card can be reinserted.

Situation 2] If the SIM card is damaged or there is a problem with the mobile phone, you can change the phone to test whether it is the SIM card or the mobile phone is faulty.

Situation 3] The current location is a signal blind zone or suddenly no signal, you can change places to test and pay attention to whether the mobile phone signal of other users around you is normal.

Situation 4] If the mobile phone card is in arrears or is shut down, you can pay off the arrears and turn it on.

Situation 5] The service is suspended due to abnormal use of the number, such as the number being used for illegal or illegal activities.

Situation 6] Roaming in Taiwan, Hong Kong, Macao or abroad can only be used after enabling Taiwan, Hong Kong and Macao roaming and international roaming.

Situation 7] If the total traffic generated by the Internet reaches the ** traffic cap value in the current month, the system will automatically turn off the Internet access function, or limit the speed of the network, and the network will be automatically restored in the next month, which shall be subject to your ** traffic cap rules.

1. Consult others around you if there is this problem, if there is the same problem, it may be that the local network is faulty, you can call the local 10086 feedback optimization;

2. Change the mobile phone for testing, if it can be used normally, it may be a problem with the mobile phone, you can contact the mobile phone after-sales consultation;

3. If there is still this situation after changing the mobile phone, it may be a problem with the SIM card, and you can bring the card to the nearby business hall for testing.

Hello, dear! I'm glad to answer your questions, I'm Xiao Lin'er! I've seen your question and I'm sorting out the answer, please don't worry, if there are a lot of people, you need to wait a while! Thank you for your understanding!! 

Hello, please inquire for you right away.

Hello pro 1, if you want to access the Internet on your mobile phone, you must turn on the data traffic switch in your mobile phone. If your phone is connected to a data network and is using that network, a flashing up or down arrow icon (flag) appears on the upper signal bar to the left of the status bar.

2. If the mobile phone card is in arrears, please call the operator** to inquire, if the arrears need to be recharged in time, restart the mobile phone to try.

3. It can observe whether the current network signal is stable. When the network signal is unstable, it is easy to cause network failures. It is recommended to surf the Internet in an environment with a stable network signal for a different period of time.

4. If you still can't access the Internet after changing your location and time, you can try to turn on airplane mode or restart your phone.

Network problems have nothing to do with the mobile phone brand, at present, the country has opened 4G network services, as long as the mobile phone that supports the 4G signal can accept and use the 4G service, but in special circumstances, such as poor signal, or far away from the signal tower or remote mountain villages, the mobile 4G signal is very weak, then your mobile phone will automatically detect the 3G or 2G network and connect, in order to ensure the most basic call function, you can change the environment to try whether the mobile phone can switch to other signals!

The conditions that OPPO mobile phones need to meet to use the 4G network:

1. There is 4G network coverage of the operator in the locality and the signal is good;

2. The SIM card is the 4G card corresponding to the 4G network supported by the mobile phone;

3. The mobile phone supports 4G network standard, such as LTE-TDD or LTE-FDD.

Note: For ColorOS and below versions, you need to go to Settings - General - Mobile Network - Preferred Network Type to select 4G mode.

1. The current use of the mobile phone card is 3G**, and you can contact the operator to modify it**;

2. The 4G signal coverage of the local environment is not available, resulting in the unusability of the 4G network;

3. Compare the network frequency bands supported by the mobile phone and the network frequency bands supported by the local area, whether there is a consistent frequency band, and the frequency band can only be used.

The 4G mobile phone used now is also said to be a 4G network, but when there is no 4G signal, it will only display 2G, otherwise the mobile phone will have no signal.

The signal is not good when used.

The phone is not set to 4G.

There is a malfunction in the configuration of the phone.

If your phone does not have a 4G signal, it is recommended that you try it as follows:

You need to use a 4G mobile phone and use a 4G** card of the corresponding standard;

Try to re-insert the SIM card, if conditions allow, replace it with another 4G card to troubleshoot;

If the 4G signal used by the mobile phone is not well covered or has no coverage in the local area, it is recommended to change the preferred network type (Settings - General - Mobile Network Settings) to check the comparison of 2G, 3G and 4G;

Some places have not yet fully covered 4G, and there are blind spots in coverage, so you need to switch to areas with 4G coverage.

If other brands of 4G mobile phones also have a bad 4G signal, you can call the local operator for feedback;

If none of the above methods can solve your problem, please bring the purchase invoice, warranty card and mobile phone to the nearest OPPO customer service center for testing and processing.

The OPPOR9 system defaults to the 4G network, if you feel that it is very expensive to use data, you can manually choose the network by yourself. OPPOR9 can arbitrarily switch 4G 3G 2G network: 1, enter Settings - Mobile Network, enter the preferred network 3, and then you can choose 4G 3G 2G network ...

Hello, you can dial the keycast *, enter the mobile message after dialing, and change it in the preferred network mode.

Hello, maybe there is no 4G network signal in your location, it is recommended that you change your card or change the region.

Check the network settings to see if 4G priority is set.

The signal is not good when used.

The phone is not set to 4G.

There is a malfunction in the configuration of the phone.

There are a number of scenarios that can prevent your phone from accessing the mobile network, as follows.

1. Check whether the mobile phone has turned on the network switch, and the mobile phone needs to turn on the network connection function to connect to the network.

2. Check whether the mobile phone is in arrears, the mobile phone in arrears cannot be connected to the data network and needs to be recharged.

3. If you can't access the mobile network due to network delay, you can turn on the airplane mode of the mobile phone, turn it off after five seconds, and then reconnect to the network or restart the mobile phone.

4. If the network settings are not set up, you can call the operator to which the mobile phone card belongs, and ask the customer service to send the relevant data of the Internet settings and set it according to the prompts.

5. If the signal in the place is not good, you can't connect to the mobile network, you can change the place and connect again.

6. Turn off the mobile phone, reinstall the SIM card or change the SIM card.

7. Whether to install mobile phone security guard software or some third-party software programs in the mobile phone, if so, please uninstall it.

9. Firmware upgrade attempt. (Settings - About Device - System Update).

The mobile phone does not have a network because the signal will be affected by various factors such as terrain, landform, and high-rise buildings during the propagation process, and if you are in a relatively closed place, the signal will be affected. Here's how to deal with it:

Turn the phone back on and off and try again;

Swap the SIM card to a family member's or friend's phone and try again;

Check to see if other Unicom users around you have a signal;

If you can't solve the network signal problem, you can contact human customer service for feedback.

Hello, the quality of the mobile phone network is related to the signal coverage of the operator, the signal reception of the environment where the mobile phone is located, the irregularity of the card cutting and the loosening of the card slot. It is recommended that you set up --- mobile network ---APN, --- change the access point to try, what 3G Internet access does your mobile phone support, it is recommended that you change a 3G card, and then change places to try whether you can access the Internet normally.

If you have any other questions, you can enter the OPPO enterprise platform to ask customer service questions!

Whether the network is closed or not, the browser can't be on, QQ can't be on, that's the network connection point is wrong, it's OK to change the connection point, if only QQ can't be on, it's a mobile phone problem Restart the phone,

OPPO phone can't go to the internet solution:

1. Restart your phone;

2. Drag down from the top of the screen (or from the bottom to the top) to make sure that "Mobile Data" is on and "WLAN" is off.

3. Go to the mobile phone's [Settings] - [Dual SIM and Mobile Network] - [SIM Card Information] - [Access Point Name (APN)], and click Reset to Default Settings (whether the traffic fee generated by the CMNet access point is included in **, please refer to the actual opening**);

4. If you still can't access the Internet after setting, it is recommended to change the phone and card for testing.

There is no indication that the phone has a network connection on it! If you can't connect, you can turn on airplane mode, or turn off and restart. That's it!

Turn on the data connection The symbol that will appear at the top of your screen indicates that you are connected to the Internet. If not. You'll start with a new data connection.

What should I do if the wifi signal of the OPPO mobile phone is full, but I can't access the Internet?

Sometimes the wifi signal of the mobile phone is clearly full, but it cannot access the Internet normally, what is going on? Serious suspicion that you are connected to fake wifi?

What should I do in this situation? Let's rule it out

Turn on step-by-step reading mode.

Why is the wifi full but can't get on the Internet?

011. Troubleshoot operator network and router.

The mobile phone is connected to wifi, but can not access the Internet normally, as long as there are two Internet devices at home can be tested, if one can not access the Internet, the other can, it may be the reason for the mobile phone;

It could be that the router hardware is damaged or stuck in an endless loop;

It may be due to the disabling or speed limit set in the background of the router, although it is connected to WiFi, it cannot access the Internet.

022. Troubleshoot connected equipment.

During the use of the mobile phone, if it is bumped, dropped, etc., resulting in insignificant damage to the device, it will also lead to the inability to access the Internet;

You can try to switch the Internet mode of the mobile phone, and test the use of the mobile network to access the Internet in the disconnected WiFi environment to see if the access is normal;

If the mobile network can access the Internet normally but the wifi is not, it may be the reason for the wifi connection.

How to solve the problem of wifi full and unable to access the Internet?

0101 Resolve router network faults.

Reset the WiFi account and password (according to the router manual), set a complex password with a combination of numbers, letters and symbols for the wireless router, and change the password regularly to avoid users from cracking the password and affecting the use of the network.

Once you find someone who rubs the Internet, you must remove and change the wifi password in time.

0202 Avoid WiFi signal interference.

Check the position of the router and do not place it with objects such as induction cookers, stereos, and microwave ovens;

Avoid generating magnetic fields that interfere with wireless signals during operation, and try to place them in an open place so that the wireless signals do not pass through walls during transmission.

0303 Avoid wifi channel congestion.

If the wireless router is placed more densely, there are many WiFi signal sources.

When the device is connected to the wireless signal, different wireless signals will interfere with each other, resulting in the congestion of the wifi channel, which will affect the wifi network speed, and even cause the device to be unable to connect or fail to access the Internet normally after connecting to the wifi.

0404 Check whether the wifi has been cracked or rubbed against the network.

If the device cannot use the network after connecting to WiFi, it may be related to the router being connected to multiple devices and the password being leaked.

If multiple devices are connected to the same wifi, although the display is full, the network speed of the wifi will be affected by the connected device and the network cannot be connected.

0505 Choose faster smart optical broadband.

The choice of broadband operator and the quality will also affect the quality of the broadband used, if you want a faster network speed, you can consider a better **tariff, of course, it is generally enough!