Why is there no signal on the phone, why is there no signal on the phone?

Let's help you analyze it:

There are two reasons why the signal is not good:

1. Operators of China Mobile and China Unicom have few locally built signal sites (i.e., signal towers). Or is it received by some electronic products to interfere with the signal, the signal is very weak in the general remote area, especially in the room, and the signal penetration is not strong! Hehe.

2. If you go to the maintenance point, it means that your signal is not good, the mobile signal is very stable, the Unicom is very subtle, and the signal base stations of Unicom are very few. It is recommended to change to a mobile card.

3. You also said above that the mobile phone itself is fine. This is the problem of their operators, in addition, the 3G network of telecommunications is now in the primary construction stage, and the base stations are still under construction, and most of them are still using the 2G network. 3G networks have been built in first-tier cities such as Beijing, Shanghai and Guangzhou.

In these local areas where economic construction is developed, the use of 3G network is very expensive.

Call ** to customer service, and then report the detailed address of your home, and it will be fine after a while! That's a signal problem, not a phone problem!

If you want your friend to try it at your house, or your big customer service, he will guide you how to troubleshoot If it's a signal problem, the customer service will notify someone to deal with it, and I also found that the mobile China Unicom and Telecom you said don't seem to be able to 、、、 at your house

If you are using a Huawei phone with a high number of signal bars or a " " symbol appears on the signal bar, we recommend that you take the following steps to solve the problem:

1. Please make sure that the SIM card is not disabled.

2. Please make sure you are in a good network environment.

Try changing your current location.

If your mobile phone has a poor signal in a specific area, or if a nearby friend's mobile phone using the same carrier** card also has a poor signal, it may be caused by the poor network quality in your location, and you can return to normal after changing to another place.

In some more enclosed indoor environments, such as houses with dense spacing between buildings, the mobile phone signal may be blocked, resulting in poor signal.

Carriers' network coverage varies depending on the region, and some areas may have insufficient coverage capacity, resulting in poor mobile phone signals.

3. Please avoid being disturbed by metal or magnetic materials.

If your mobile phone uses a special metal protective case, or you are in an elevator, car and other environments, it is recommended that you remove the mobile phone protective case or leave the elevator, car and other environments, metal and magnetic materials are easy to interfere with the signal, resulting in poor mobile phone signal.

4. Please restart your phone or switch on and off airplane mode.

The special configuration of some networks may cause your mobile phone signal to be unstable, no signal, or poor signal, which can be restored after restarting your phone or turning off airplane mode.

5. Please reset the APN

Open Settings, enter APN in the search bar at the top, tap Access Point Name (APN) to jump to the mobile data settings interface, tap Access Point Name (APN) again, then tap the three dots in the upper right corner, and select Reset to Default Settings to try.

6. Please reset the network settings.

7. Please take out the mobile phone card.

If your mobile phone card is manually cut and there may be signal problems due to non-standard shape and poor contact, it is recommended that you bring your personal ID card to the operator's business office to apply for a standard mobile phone card.

Dirty or oxidized SIM cards can also lead to poor contact, so it is recommended that you keep them clean.

8. Please update your phone system to the latest version.

It is recommended that you update the system version of your mobile phone in a timely manner.

If your mobile phone still has an unstable signal, no signal, or poor signal, please contact Huawei Consumer Service** (950800), back up your data in advance (QQ, WeChat and other third-party apps need to be backed up separately), and bring your purchase voucher to a Huawei Customer Service Center near you for further assistance.

The reason why there is no signal on the mobile phone is because the signal will be affected by various factors such as terrain, landform, and tall 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:

1. Turn the phone on and off again;

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

3. See if other mobile phone users around you have a signal;

If there is no signal, you can contact customer service for feedback.

It is recommended to take the following methods to try to solve:

1.Avoid using magnetic metal cases, magnetic stands, or magnetic chucks.

Metal and magnetic materials can easily interfere with the signal, resulting in no signal on the phone.

2.Please try to change to another SIM card.

It is recommended that you install other mobile phone cards into your mobile phone to view, if the signal display of other mobile phone cards is normal, it may be that there is a problem with your mobile phone card, it is recommended that you go to the operator's business office to replace a new mobile phone card.

3.Please try moving to your current location.

1) In some closed indoor environments, such as houses with dense spacing between buildings, the mobile phone signal may be blocked, resulting in no signal. You can get outside to see if your phone signal is back to normal.

2) The degree of network coverage of operators varies according to different regions, and urban areas basically meet the coverage, but some remote areas may have insufficient coverage capacity, which will lead to no signal on mobile phones.

You can determine whether the current regional network coverage is poor by whether the mobile phone has no signal when it is only in the same area, or whether there is no signal from nearby mobile phones using the same carrier** card.

4.Check that the APN settings are correct.

Incorrect APN settings will affect the normal use of the network.

Method 1: aClick Settings;

c.Click on the APN name (APN) to go to the APN page.

d.Turn on the three dots button in the upper right corner;

e.Click Reset to default.

Method 2: If your phone is EMUI and above or Magic UI and above, or HarmonyOS and above, you can also follow the steps below:

a.Click Settings;

b.Tap Mobile network, then tap Mobile data;

c.Click on the APN name (APN) on the Mobile Data page to go to the APN page.

d.Turn on the three dots button in the upper right corner;

e.Click Reset to default.

Settings > Wireless & Networks > Mobile Networks > Access Point Name (APN) > turn on the three dot buttons in the upper right corner > reset to default.

5.Please try to reset the network settings.

If the above troubleshooting does not solve your problem, we recommend that you go to the nearest customer service center for testing.

Reasons why the mobile phone has no signal: 1. The mobile phone does not support this type of card. 2. Network mode problems. 3. Mobile phone hardware problems. 4. Problems with mobile phone cards. 5. Network coverage problems.

If there is no signal, I will choose to register in "Settings - Mobile and Network - Network Operator". If the registration is successful, there will be a signal.

but！Sometimes, even then, there is no signal! Sometimes the network mode will also cause no signal, you can switch the network mode, such as 3G to 2G, 2G> 3G> 4G signal.

If there is a signal in other cards, it means that the card slot is not broken, so insert the card into someone else's mobile phone to see if there is a signal, if there is no signal, it may be a problem with the card. The phone has been used for a long time, there will be some dust, and this situation may also occur, you can blow the card slot.

When I don't have a signal, it's an environmental problem. We all know that the signal can be blocked and interfered with, in the network coverage is relatively weak, such as in remote mountainous areas, if you have no signal when you insert any card, there is no "automatic selection and manual selection", and if you plug it into someone else's mobile phone, it is the problem of mobile phone hardware. Take it and fix it...

Answer: There is no signal on the mobile phone, which may be caused by interference in the vicinity The mobile phone signal is not good, in addition, there is also a possibility that you have inadvertently set the mobile phone to airplane mode, and in the state of airplane mode, the mobile phone also has no signal.

It may be that there is a problem with the mobile phone card, or it may be that there is electromagnetic interference in your environment, try it in another place.

Either your phone is down in arrears, or the signal is not covered in your environment, or there is interference, which is possible.

There is no signal on the mobile phone, there is a problem with the software of your mobile phone to receive the signal, you can go to repair it after the sale.

1. Reasons for poor network quality.

If the same phenomenon occurs in the vicinity of mobile phones using the same carrier card, it may be caused by poor network quality in the current location.

2. Check your phone settings.

Open your phone's shortcut bar (scroll up at the top or up at the bottom) to see if data is turned on.

3. Confirm the status of the mobile phone card.

Please make sure that the balance of the mobile phone card is sufficient, if the payment is in arrears, please restart the mobile phone after the recharge is successful. Check with your carrier to see if the data** has reached the data limit. If necessary, you can change the SIM card that can access the Internet normally to confirm.

4. Check the mobile phone signal.

If your phone uses a metal, magnetic case or bracket that has an impact on your phone's signal, we recommend that you remove it and try it.

5. Check the network settings.

Please go to Mobile Settings - Mobile Network Dual SIM and Mobile Network - Mobile Unicom Telecom Radio and Television - Access Point (APN) and click here"Reset to the default settings"restart your phone.

6. Reset the network settings, the operation will delete and disconnect the connection and pairing records of WLAN, mobile data network, Bluetooth and other networks, and enter Settings - System Management - Backup and Reset - Reset Network Settings - Enter the lock screen password.

7. You can enter the Settings - System Management - Backup & Reset - Restore All Settings - Restore and Restore Settings option. This operation will not delete the ** file, it will cancel the password, restore all settings, including: set wallpaper, unlock style, wifi, default open program, etc., and the logged in software account also needs to be logged in again.

Note: Go to Cloud Service - Device Cloud Backup - Backup Data Type - System Data - Return - Back to Back Up Now to back up some system settings and desktop layout; Cloud service--Data synchronization--Turn on WLAN, Bluetooth, etc. to synchronize data to cloud service.

The signal will be affected by various factors such as topography, landform, tall buildings, etc., and if you are in a relatively closed place, the signal will be affected. Here's how to deal with it:

1. Turn the phone on and off again;

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

3. Check to see if there is a signal from other Unicom users around.

There are three scenarios when there is no signal:

1.There is no signal locally. For example, the place is remote, there is metal isolation around, and the signal is not good.

2.The phone itself has a bad signal. For example, the iPhone has no signal in a weak place.

3.The phone is broken and is about to be repaired.

Hope, thank you.

First of all, whether your mobile phone data is enough, and whether your location has network coverage.

If your phone doesn't have a signal, you can turn on airplane mode and then turn the internet back on.

The reasons for the lack of signal on the mobile phone are: interference with the surrounding signal in the field, malfunction or maintenance of the cell tower, problem with the mobile phone terminal, out of the service range of the operator, no SIM card inserted or SIM card problem.

1. Caused by surrounding signal interference.

In some special environments, such as high-rise buildings, mountainous areas, basements and other places, the GPS signal in these areas is prone to interference, resulting in a decrease in the quality of the mobile phone signal. In addition, if there are some high-power electronic devices and radars nearby, it will also interfere with the mobile phone signal.

2. The mobile phone tower is faulty or maintained.

Due to various reasons, such as bad weather, equipment failure, etc., cell towers may stop working, resulting in the phone not being able to connect to the signal properly. In this case, we can only wait for the tower to be repaired or replaced with a signal from another operator.

3. Problems with mobile phone terminals.

Sometimes, we may not be able to connect to the signal due to problems with our phones. For example, a problem with the phone's settings, a faulty signal receiver, etc., can cause the phone to not get a signal.

4. It is beyond the service scope of the operator.

Even if the operator has extensive coverage, in some sparsely populated areas, especially in remote mountainous areas, deserts and other places, the signal may be very weak or no signal coverage.

5. The SIM card is not inserted or there is a problem with the SIM card.

If we forget or install the SIM card by mistake, the phone will not connect to the signal. In addition, the SIM card may be damaged or need to be replaced, which will also cause the phone to have no signal.

Mobile phone communication is to send and receive signals through the network base station, and then communicate with the called party, such as the mobile phone shows no service may be related to the following conditions:

1. The SIM card of the mobile phone is in poor contact with the shneme of the mobile phone card slot, resulting in the failure of the SIM card circuit and the inability of the mobile phone to communicate with the network base station.

2. The mobile phone is incompatible with the system due to the application software for installation, resulting in the system software closing the modem in the mobile phone signal processing circuit, at this time you can turn off the mobile phone and then restart, the modem in the mobile phone signal circuit will be restarted, and after the signal is normal, delete the suspicious mobile phone application software installed before the problem.

3. The SIM card of the mobile phone is not registered in the network, at this time, you can insert this SIM card into another mobile phone, if it also shows no service as the reason for the SIM card.

4. If the SIM card of the mobile phone is accidental, and there is no signal in the network signal coverage area, it fails to reconnect to search the network and merge the book, at this time, you can manually search for network registration under the menu of Settings - General - Network - Network Operator.

5. If the signal coverage of the mobile phone SIM card network operator is not available, you can change the location to an open area, and then check the mobile phone signal grid display, if the display is normal after changing the location, you can call the network operator service ** for feedback and complaints.

6. **The card has been used for too long, and with a valid certificate, you can go to the local business hall to reapply for a card.