What s going on with the phone no signal, what s going on?

There are only two situations when the phone has no signal:

1. Network problems or network inability to cover.

When the network coverage is not good, it is generally located in mountainous areas, basements, elevators, and when there is shielding or signal interference, there will be no signal or very weak appearance. In the process of debugging, optimization and maintenance, the network may also cause signal instability, and the general network will return to normal, and the mobile phone signal will return to normal.

2. Problems with the mobile phone itself.

There may be a problem with your phone's receiver. You need to go to the repair point to have a look.

Of course, the factor of SIM card corruption cannot be ruled out.

Judgment method. 1. Check whether the mobile phone card slot or SIM card is damaged: you can insert other mobile phone cards to try, and then put the SIM card of the mobile phone itself on other mobile phones to see if there is a signal, if the card slot is damaged, it is recommended to replace the card slot, if the SIM card is damaged, please go to the business hall to replace the SIM card.

2. There is no signal on the mobile phone caused by network delay: you can turn on the airplane mode of the mobile phone, turn it off after five seconds, or restart the mobile phone.

3. If the signal in the place is not good, the signal cannot be found, so you can search in another place.

4. Damaged mobile phone receiver: If there is still no signal despite the above reasons, and you suspect that the mobile phone receiver is broken, please go to the mobile phone after-sales location for testing and repair.

Depending on the situation, there may be several reasons:

1. In the region, the network has been adjusting recently.

2. Maybe there is a problem with the receiver of the mobile phone, sometimes good and sometimes bad. The friend's card is normal when it is placed in the phone, and it may be just normal. To rule out this factor, you can go to the repair point to see.

Second, the SIM card is not broken but the mobile phone has no signal.

There may be many reasons for the mobile phone card to not find the signal: 1, mobile base station problem 2, mobile phone system problem 3, mobile phone card problem, so for the above three problems, it is recommended that you first check whether the surrounding friends use mobile phones to see if there is a signal, if other people's mobile phones also have no signal, it may be a local network base station problem, it is recommended that you contact the local 10086 to deal with, and then use your mobile phone to plug in other friends' mobile cards to try, if you plug in other cards are not good, then it may be a mobile phone system problem, It is recommended to contact the mobile phone after-sales service, if you insert other cards are signal, just insert your own card, then it may be a problem with your own card, it is recommended that you take the mobile phone card to the local mobile business hall for testing.

3. What should I do if there is no signal on my mobile phone in distress? Emergency call 112?

Can I call an emergency number even if I have a weak signal?

If a user holds a mobile phone and wants to talk to other users, the first condition is that the mobile phone must establish contact with a nearby mobile phone base station to receive and send signals to each other. The signal of ordinary mobile phones is relatively weak, and the range that can be covered under different circumstances ranges from hundreds of meters to several thousand meters, which is much smaller than the distance between the satellite and the earth, and it is impossible to use the satellite to communicate. At the same time, if there is no mobile phone base station within this range, or because of obstacles, such as subway tunnels and mountains, the mobile phone cannot be built with the base station.

1. Restart your phone and try it. 2. Take out the SIM card and reinstall it. 3. Go to Hardware Detection to see if the SIM card is working properly.

If the SIM status is normal, go to step 5, if the status is unknown, go to the step to try to replace a different SIM card, if the status is still unknown during hardware detection, it is recommended to go to the maintenance point for testing; If the detection status is normal, it is recommended to go to the carrier to replace a SIM card (the SIM card may be aging). 5. Whether the network type is correct and whether the operator selects whether it is automatic. (China Unicom selects 3G priority, mobile selects only 2G, and telecom selects automatic) 6. Check whether there is a signal for other mobile phones on the same network nearby.

7. Back up the data, flash to the latest system version and try again. 8. Call the operator** (China Mobile 10086, China Unicom 100.)

Take a look at your network or acceptance system.

If you are using a Huawei phone and the " " symbol appears on the signal bar of the phone's status bar, we recommend that you take the following methods to try to solve the problem:

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

If your phone uses a metal case, magnetic case, magnetic bracket or magnetic chuck, it is recommended that you remove it and try it, as metal and magnetic materials can easily interfere with the signal and cause no signal on your phone.

2.Please rule out network causes.

1. Try changing your current location.

In some more enclosed indoor environments, such as houses with dense spacing between buildings, the cell phone signal may be blocked, resulting in no signal.

The degree of network coverage of carriers varies according to different regions, and some areas may have insufficient coverage capacity, resulting in no mobile phone signal.

If your mobile phone has no signal in a specific area, or if a nearby friend's mobile phone with the same carrier** card also has no signal, it may be caused by poor network quality in your location, and it can be restored to normal after changing to another place.

2) Please try resetting the APN

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-dot button or four-dot button in the upper right corner;

e.Click Reset to default.

Method 2: If your phone is EMUI and above, or HarmonyOS and above, you can also follow these steps:

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-dot button or four-dot 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.

3) Please try to reset the network settings.

On the Reset Network Settings page, click Reset Network Settings (for dual-SIM phones, select the ** card you want to restore), and enter the lock screen password according to the on-screen prompts.

Click Reset Network Settings, and a message will be displayed at the bottom of the screen that the network settings have been restored.

3.Please troubleshoot the SIM card.

It is recommended that you install the SIM card of the same operator into your mobile phone to check, if the signal display 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 the new mobile phone card.

4.Please try after updating your phone system to the latest version.

If the above troubleshooting does not resolve your issue, we recommend that you contact Huawei Consumer Service** (950800) for further assistance, or back up your data in advance (WeChat QQ and other apps need to be backed up separately), and bring your purchase voucher to a Huawei customer service center near you.

There is no signal on the mobile phone, one situation is that the signal is really bad, so the mobile phone has no signal, but now this possibility will be relatively small, and there is another. If the mobile phone card is not installed, if the mobile phone card is not installed, it will also cause no signal, and there is a problem with the mobile phone and you need to go to the repair point for repair.

If there is no signal in the mobile phone, it must be that the signal card in your mobile phone is broken, that is, if the ** card is broken, you need to change the card.

If your phone has no signal, it's likely that you have accidentally turned on the airplane mode on your phone. Turn off the airplane mode to regain the signal. 2. When the SIM card is not inserted properly, there will also be no service problem on the mobile phone.

Check the SIM card and reorganize it.

There may be two reasons why the mobile phone has no signal, one is that the card slot of the mobile phone is loose, and the card slot cannot read the SIM card correctly, so the mobile phone has no signal. In addition, after the mobile phone was dropped, the antenna was broken. At this time, the signal of the mobile phone is extremely poor, or even no signal.

If you are using a Huawei phone and the " " symbol appears on the signal bar of the phone's status bar, we recommend that you take the following methods to try to solve the problem:

1.Whether a magnetic case, metal case, magnetic stand, or magnetic chuck cup is used.

If your phone uses a metal case, magnetic case, magnetic bracket or magnetic chuck, it is recommended to remove it and try it, as metal and magnetic materials can easily interfere with the signal and cause the phone signal to deteriorate.

2.Change 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 poor signal. You can go outside to test if the mobile phone signal can return 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 poor mobile phone signal. You can determine whether it is caused by network coverage problems by whether the mobile phone signal is poor when you are only in the same area or the mobile phone signal status of nearby friends using the same carrier** card.

3.Check that the APN settings are correct.

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

2) Click the APN name to enter the APN setting interface.

3) Open the three dots in the top right corner and tap Reset to default.

4.Clean the SIM card, cross-swap card attempt.

1) Please take out the ** card to observe whether the metal surface is dirty or oxidized, it is recommended to keep the ** card clean and try it.

2) It is recommended to change to another SIM card of the same carrier, or change the SIM card to another mobile phone that supports this card before viewing. If the signal icons are all displayed as no signal, it is recommended to go to the operator's office to check and replace the SIM card with a new one.

5.Reset network settings.

If the problem persists, we recommend going to Settings, searching for Restore Network Settings, and clicking Reset Network Settings. This operation will delete Wi-Fi and Bluetooth related records, so please operate with caution.

If the problem persists after trying the above methods, we recommend that you back up your data in advance (WeChat QQ and other apps must be backed up separately) and bring the relevant purchase voucher to a nearby Huawei customer service center for testing.

Hello, I have seen your question and am sorting out the answer, please ask for two minutes. The phone only has a 2G signal.

Hello, happy to answer this question for you, are you overrunning the traffic limit?

Questions. No, it's the same with a few different cards.

Hello, you can open the phone settings - mobile network - mobile data - network mode to see if it is set to only 2G?

Also, see if the mobile data switch is not turned on.

Questions. This one is open 3

The card does not show 4G

Hello, if someone else's mobile phone (with the operator) is the same as you, there is only 2G signal (long-term), it means that the signal is indeed bad in your location, if this phenomenon has just appeared, then it may be caused by the operator's base station failure, you can call customer service ** according to the voice prompts to transfer manual service for complaint feedback, within 48 hours there will be someone to contact you to solve.

Hello, if this is the case for only your phone, then you need to take it for service.

Many people are puzzled by the fact that the mobile phone signal is full but always disconnected, but the reason is very simple.

It is possible that the SIM card is locked and needs to be unlocked to be used, and there may be a reaction to the bad contact between the SIM card and the mobile phone.

Operating phone: iphone11

Operating system: ios13

The reason why the phone has no signal at all:

1. It is in a remote place where the open signal cannot radiate.

2. The mobile phone signal is weak, mostly because of the problem with the transmitter amplifier of the mobile phone.

3. Mobile phone CPU problems, which will lead to intermittent screen fixing or automatic shutdown or restart, at this time, there will also be no signal at all, as for which aspect your machine belongs to, if you exclude the first point, you need to go to the maintenance point to detect to know which one it belongs to.

Workarounds for phone no signal:

1. Press and hold the power button on your phone, then select Airplane mode to turn on Airplane mode.

2. After there is an airplane icon on the notification bar of the mobile phone, press and hold the power button, select the sock staring mode, and turn off the airplane mode.

3. Click the Menu button on the standby desktop of your phone and select Settings.

4. Click Wireless & Network, select Mobile Network, and click Select Network.

7. According to the card type, select the corresponding option of your own card, if you don't understand, select Automatic, default.

8. Click the operator to select the operator.

10. Select the service network according to the card type. <>

The phone has no signal because the hardware inside is damaged or the settings are wrong.

There is a problem with the SIM itself, such as oxidation of the yellow metal contacts. Some contact points cannot be powered, resulting in no signal problem for mobile phones. Wipe the metal contact area with an eraser, or wipe it with anhydrous alcohol.

The SIM card itself is damaged internally, you can try a new card. If there is a signal, it means that the card without signal has been damaged, and go to the business office of the communication operator to replace it. The card slot is damaged, resulting in the SIM card not being read correctly.

Go to a mobile phone after-sales repair center or mobile phone repair shop to replace the parts of the card slot.

If there is a problem with the connection between the mobile phone antenna and the motherboard, go to the repair center for repair. Damage to the mobile phone's radio frequency, internal external baseband, and chip with integrated baseband will also cause the mobile phone to have no signal. Go to the repair shop for repair, brush the system for the mobile phone, and it is also possible to lose the baseband information and need to return it to the factory.

The motherboard of the mobile phone is aging, the mobile phone has been dropped, and the wiring part of the motherboard and the network signal is disconnected. Return to the factory for repair, or replace the motherboard assembly directly.

Ways to boost your cell phone signal

Cell phone coverage varies from place to place, with some mobile providers offering better coverage than others, especially in rural areas where there are fewer signal towers. Use the coverage checker tool to check mobile coverage in your area, and consider switching if other mobile network providers offer better coverage for your location.

Improve the position of mobile** reception, as there are fewer obstacles such as buildings that can block the signal. If you are at the foot of a mountain or in a valley, start climbing. If indoors, try to go upstairs and stay on the side of the house closest to the mobile company's transmitter.

Since mobile radio waves have a hard time penetrating walls, standing next to an open window in your home or elsewhere may help you get a signal strong enough for an uninterrupted call.