Why doesn t the vivo platinum version of the mobile card show 4G network, only 3G

It depends on the conditions.

First, your mobile phone must support the 4G network, which is generally available in the settings.

Second, whether you have enabled 4G services.

The Vivobo Platinum Edition is only available in the X5MAX Platinum Edition, which adopts a 5-mode design and supports TDD-LTE and FDD-LTE dual 4G networks, which is suitable for major global networks, so that the world can travel without worry. That is to say, China Mobile uses TDD-LTE, and China Unicom and China Telecom use a mixture of FDD-LTE and TDD-LTE. TDD-LTE saves resources and FDD is fast; At the same time, the unique patented technology [and or card tray] design, providing two card slots for the main card and the auxiliary card.

Among them, the supplementary card part can choose to place Nano SIM card or TF card, dual SIM card or expansion at will, no trouble, more comfortable!

Is the X5Maxs model? Based on your description, we recommend that you try the following:

1. Whether the SIM card of the mobile phone is a mobile 4G SIM card, and whether the 4G data is enabled**.

2. Whether there is 4G network coverage in the environment.

3. Go to Settings - Network - Network Mode, select 4G (Priority), 3G 2G.

If you try the above methods and still can't help you solve the problem, it is recommended that you go to the after-sales service center to test your mobile phone, please rest assured, the technicians of the after-sales service center will properly deal with the problems encountered by your mobile phone, you can check the address of the after-sales service center in the settings of the mobile phone - more settings - after-sales service menu. You can also go to vivo official ** to check the address of the after-sales service center:

If the consultation is that the 4G network of China Unicom cannot be used, it is not excluded that it is caused by not meeting the conditions of use, it is recommended to check through the following conditions for using the China Unicom 4G network: 1. Use China Unicom 4G ** or ** has opened the 4G network function; 2. The mobile terminal supports China Unicom 4G network; 3. The location has coverage of China Unicom 4G network; 4. The number card is a USIM card. Therefore, you can check whether you meet the above conditions, and you can use the Unicom 4G network only after you meet them.

The vivo X7 mobile phone uses a mobile 4G card with a network mode, need to imitate into the phoneDial-upinterface, enter * to be the only network mode that can appear.

Steps:

1. Find the dial icon on the desktop of the mobile phone.

2. Enter Input*

3. Enter to view the network mode.

You can check the troubleshooting method for the mobile phone not being able to use the 4G network

1. Inspection"Network mode"is correct.

Go to Settings - Mobile Network (Dual SIM & Mobile Network) - Mobile Unicom Telecom - Network Mode, 4G Phone Selection: 4G (Priority) 3G 2G, 5G Phone Selection: 5G (Priority) 4G 3G 2G

2. Confirm whether to use third-party magnetic or metal accessories.

Please check whether you use metal protective shells, magnetic protective shells, magnetic brackets and other accessories, metal and magnetic materials are easy to interfere with signal reception, it is recommended to remove the accessories to view.

3. Check whether the current environment covers the operator's network.

You can observe the mobile phone signals of the same operator's network in the surrounding area, and if there is no 4G network, it is caused by the operator's imperfect 4G network coverage. In a closed indoor environment (e.g., basement, elevator, etc.) or in a relatively remote area, the operator's network may not be fully covered.

4. Restart your phone or switch on airplane mode.

In some areas, the network configuration may cause the phone to fail to return to the 4G network in a short period of time, so you can restart the phone or turn on the airplane mode to try.

5. Check the SIM card and perform cross-card verification.

Observe whether there is dirt or oxidation on the metal surface of the SIM card, and check it after cleaning. If you use a tailor-made SIM card, it is recommended to replace it with a standard SIM card. Install the SIM card to another device, or install another SIM card to the mobile phone for comparison and testing to determine whether it is a SIM card failure.

If it is a SIM card, it is recommended to go to the operator's business office to replace the card.

6. Upgrade the system or reset the network settings.

Please upgrade your phone to the latest version, if the phone is already the latest version, it is recommended to go to Settings - System Management - Backup & Reset - Reset Network Settings - Mobile Unicom Telecom - Reset Settings, and then use to view.

Note: Resetting network settings resets Wi-Fi, mobile data, and Bluetooth connection records.

Backup: Go to "Cloud Services" -- Device Cloud Backup -- Backup Data Type -- Open "System Data" -- Return to the previous page -- Back up now, and back up some system settings data.

If the above methods are invalid after operation, you can bring your mobile phone and purchase voucher to the customer service center for processing, customer service center address: enter vivo official website vivo**app - my - service outlets or vivo official website web version - bottom - service support - service outlets query - select provinces and cities to query the address of the customer service center. It is recommended to contact ** in advance before going to avoid empty running, plan the itinerary reasonably, and travel safely.

If your phone cannot access the Internet normally, please check the following conditions:

1. If you don't restart your phone after upgrading to 4G**, you won't be able to use the Internet function normally;

2. Confirm whether there is a network, it is recommended to use it in a place with a strong signal;

3. Check whether there is still a phone bill in the account, if the balance is insufficient, you need to recharge before you can use it;

4. After 3-5 minutes of power off, restart the phone and try again;

5. Check whether the USIM card is plugged in, if it has been plugged in but still cannot be used, it is recommended to go to the business hall to check whether the USIM card is faulty, or the machine card is interchangeable test;

6. If the traffic usage reaches the cap value in the current month, the network will be automatically shut down, it is recommended to pay attention to the operator's SMS reminder or inquire about the **product description.

4G card + 4G mobile phone may not be able to use the 4G network, and you also need 4G signal coverage in your location to use.

If your location does not have 4G signal coverage, the phone will automatically switch to 3G mode, and the phone must meet the following conditions to use the 4G network

Different versions of mobile phones need to use the 4G card of the corresponding operator (e.g. mobile 4G mobile phones must use a mobile 4G card) and activate 4G data**;

Go to mobile phone settings - network mobile network - network mode - set 4G priority;

There is a 4G network covering the local area;

The network environment is good;

Check whether the mobile phone is enabled 4G network mode, enter the mobile phone settings - mobile network dual SIM and mobile network - network mode to view, some models need to enter in the dial pad: * * view.

Make sure that the local coverage is the 4G network of the operator to which the SIM card belongs, and if necessary, it is recommended to change the network environment to observe.

Turn off the data network and wait a few minutes before turning it back on for observation.

Go to Phone Settings - Mobile Network Dual SIM & Mobile Network - Access Point (APN), select "Reset to Default Settings", and then turn off and restart to try.

4G Introduction:

Is it not supporting 4G, if it does, it will be repaired after sale!

The display function of the mobile phone is abnormal, resulting in the mobile 2G network being displayed despite using the mobile 4G network.

It is possible that the connection cannot be made due to a system error, so try to restart the phone.

If the surrounding signal is unstable, the network connection will not be able to be used normally, so you can change to an area with a better signal to try.

Too low system version is easy to cause errors, and the system of the mobile phone should be upgraded in time to have a better matching effect.

Hello, I suggest you make the following predictions:

1.Self-check whether the terminal is full Netcom: mobile phone dial keypad input*; If you can display both MEID and IMEI**, it is a full Netcom mobile phone, if only MEID is displayed, it is not full Netcom.

If it is not a full Netcom mobile phone, then it may not support Unicom 4G, you can go to the place where you bought the mobile phone to verify.

2.If it is a full Netcom mobile phone, you can put the card on other mobile phones to try, if 4G can be displayed on other mobile phones, it is still a terminal problem, if there is no 4G, you can contact 10010 to reflect the corresponding situation, and the customer service staff will further check for you.

You may be buying a mobile, telecom custom-built machine.

Explain that this is a mobile customization machine.

Only the 2 3 4G network of China Mobile can be used, and the same will be true for Unicom to use 2G plug-in telecom cards.

If you want to use 4G from all three major operators, please buy a mobile phone with "Full Netcom".