Hello, what s the deal with the phone suddenly no signal?

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 whether other Unicom users around you can use it normally.

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.

If you go into a place with a dense building or a particularly remote place, it is possible that the mobile phone signal is weak, and the mobile phone cannot receive it to indicate that there is no signal. There is also a possibility that there is a problem with the phone, restart the phone and try it.

It is possible to be in a place with a poor network signal, such as in the mountains, in the elevator, in the basement and other remote places, and the base station network will lose the signal if the natural mobile phone is not covered.

If the mobile phone suddenly has no signal, it may be that the card has poor contact with the mobile phone, or there is no signal in the depths of the landlord.

This situation will happen often, this is not a problem with your mobile phone, but a problem with the whole network, you wait for a while for the network to reappear on your mobile phone and you will have a signal, there is no need to rush this kind of thing.

Hello, all of a sudden there is no signal on the phone, what's going on? Suddenly, there is no signal on your phone, which may be caused by a network outage.

Hello, what's the deal with the phone suddenly no signal?

Ask someone nearby to determine if the signal quality is poor in the neighborhood. This is also not uncommon, both in cities and in mountainous areas. If the situation is more serious, it is recommended to contact the operator for a solution.

Second, the signal is blocked.

In some large exams or near the security center, there is a signal blocking device, and if the mobile phone arrives here, no matter how good the performance is, there will be no signal. Please see if there is such a shielding device nearby.

3. There is a problem with the SIM card.

If the SIM card is used for too long, the surface of the card will be worn to a certain extent, which will lead to unstable signal, you can take out the card and replace it on other mobile phones to try, determine the problem of the SIM card, you can go to a larger business hall to apply for a replacement card.

Fourth, the SIM card has been maliciously copied.

There is also a possibility that the SIM card has been maliciously copied by criminals. Especially when you have a lot of online banking, some criminals may maliciously copy your SIM card through the network, and then steal your online banking through the copied SIM card. At this time, your SIM card has no signal.

5. Whether a metal mobile phone case is used.

In fact, many mobile phone shells sold now are plastic, silicone this insulating substance, this is no problem, but there are also people who usually have a high damage index, in order to avoid the mobile phone from breaking, the use of that thick shell, metal shell to cause serious interference and shielding of wireless signals.

6. Temporary failure of mobile phone.

This happens from time to time, and it can be more frequent when your phone is not performing well. Turn airplane mode on and off or turn it off, or turn it off and restart.

7. The mobile phone antenna is broken.

Every mobile phone has an antenna that is used to receive signals. If there is a problem with the antenna and the signal cannot be received, the phone will show that there is no signal. At this point, you'd better change your phone.

8. Mobile phone performance problems.

Some mobile phones have signal problems by themselves, and it is recommended not to buy such phones as much as possible.

Some mobile phones have signal problems by themselves, and it is recommended not to buy such phones as much as possible.

Ask why your phone suddenly has no signal.

Why is there no signal on the phone all of a sudden?

And I also sent you some reasons, you do an elimination method, see what the specific reasons are.

The question was not disconnected.

There is no disconnection. The phone can't be turned off yet.

The phone can't be turned off yet.

Asking questions is now turned off.

Is it possible that the phone suddenly has no signal because someone else has stolen the mobile phone number?

Is it possible that the phone suddenly has no signal because someone else has stolen the mobile phone number?

Answer: The mobile phone number is made by the operator, and this situation generally does not exist, but it may be that there is a shield nearby, and it may not necessarily be a phoenix, as long as it doesn't happen often, it doesn't matter.

Typical network problems, have nothing to do with your mobile phone, this depends on the environment you are in, don't be too closed, these will affect the mobile phone signal, you can turn off the mobile phone for a period of time and then open the mobile phone to try, if it doesn't work, change the access point, I believe that this is OK, and you can only do this, this kind of problem is often encountered.

If it doesn't appear in other places, it appears at your home, it may be that your network signal is not very good, and there are network blind spots, so you can report it to customer service.

Hello, is the mobile phone signal is unstable, specifically to check it, you first compare it with other mobile phones, in the same place other mobile phones are good, your mobile phone is not good on the network, there are many problems with the mobile phone motherboard will cause signal instability, software problems will also cause signal diving, according to the situation you said, I suggest you flash the phone first, flashing is to upgrade the mobile phone, which is equivalent to the computer installation system.

No mobile phone signal 1: The mobile phone has no signal and cannot be called**. First, use manual search to see if you can receive the network (China Mobile or China Unicom), if you receive it, check the transmitting part of the circuit, if you can't receive it, check the receiving circuit.

No signal on the mobile phone 2: No signal on the mobile phone: look at the boot current, if the current beats very slowly (about two seconds or more), it is generally a problem with the RF circuit, focusing on checking VCO, AFC, RI Q, etc.

No signal on the mobile phone 3: No signal on the mobile phone: look at the boot current, if the current does not beat much, focus on checking whether the IQ signal at the receiving part is normal.

No signal on the mobile phone 4: No signal on the mobile phone: look at the boot current, if the current does not beat, focus on checking the CPU and software.

Signal from time to time 1: signal from time to time: see if there is a signal to play **, if it can be played is generally not good reception or transmission performance, focus on checking the antenna contacts and antenna switches.

Signal comes and goes 2: The signal comes and goes: see if you can hit ** when there is a signal, if the signal falls down as soon as you hit **, there is generally a problem with the transmission part. Focus on checking power amplifiers, antenna switches, VCOs, etc.

Signal comes and goes 3: Signal comes and goes: see if you can play ** when there is a signal, if you can't play and the signal will not fall, in the domestic machine or parallel goods (South Korea) machine, many are software problems, but there are also bad amplifiers, you can remove the power amplifier and try the flying wire.

Hello, is the mobile phone signal is unstable, specifically to check it, you first compare it with other mobile phones, in the same place other mobile phones are good, your mobile phone is not good on the network, there are many problems with the mobile phone motherboard will cause signal instability, software problems will also cause signal diving, according to the situation you said, I suggest you flash the phone first, flashing is to upgrade the mobile phone, which is equivalent to the computer installation system.

Summary. This may be due to the location of the phone or the distance of the tower. Sometimes, if you are near a tall building, in a basement, or in a remote area, the signal may be blocked or relatively weak.

In addition, the phone may also experience some technical glitches, such as software issues or hardware damage, which can also cause the phone to lose signal suddenly. Here are some things you can try to fix the problem:1

Move to an open area to avoid high-rise buildings, tunnels, etc.; 2.Check the network signal option in your phone's settings to make sure the signal is set correctly; 3.Restart your phone, sometimes the problem may resolve itself after a restart; If the problem persists, it is recommended to contact the customer service of the mobile phone manufacturer or carrier, and they may provide a more specific solution.

Hope it helps!

This may be due to the location of the phone or the distance of the tower. Sometimes, if you are near a tall building, in a basement or in a remote area, the signal may be blocked or relatively weak. In addition, the phone may also be bent and there will be some technical glitches, such as software problems or hardware damage, which can also cause the phone to lose signal suddenly.

Here are some things you can try to fix the problem:1Move to an open area to avoid high-rise buildings, tunnels, etc.; 2.

Check the network signal selection in the mobile phone settings to ensure that the signal settings are correct; 3.Restart your phone, sometimes the problem may resolve itself after a restart; If the problem persists, it is recommended to contact the customer service of the mobile phone manufacturer or carrier, and they may provide a more specific solution. Hope it helps!

Fellow, I really didn't understand, I can be more specific.

The loss of cell phone signal can be due to geographic location or distance from the cell tower. Move to an open area, check your network signal settings, restart your phone, or contact the manufacturer's or carrier's customer service to resolve the issue.

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 try to remove it, as metal and magnetic materials can easily interfere with the signal and cause the phone to have no signal.

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 Zhou Jingdan's friend's mobile phone using the same operator** 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.Open the three dot buttons or four tap the light ruler 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.