The mobile phone does not see the network. IPhone does not see the network - a simple solution to the problem

What to do if the phone does not receive or loses the network? If you watch this video, then this is a problem again. We will explain the reasons simply, this video is not about how cellular communications, satellites and fiber optic cables, etc. work. This video is about how to find out what is the reason for the loss of signal: in the device itself or in third-party circumstances?

Samsung Guide channel video.

Any cellular operator’s network is built using base stations – towers. Each has its own coverage area. The quality of communication depends on how closely the area of ​​each base station is adjacent to each other. When a phone moves from the area of ​​a certain tower, the system automatically determines the direction of movement and transmits a signal from it to another. The subscriber does not notice transitions when the zones of several stations intersect. You can move, talk and use the Internet freely. But it happens that there are gaps between zones. In this case, the subscriber has no connection until he moves.

There are several network modes: 2G – E – second generation. When the phone receives reception, the letter E appears at the top. In the settings it is designated as GSM 3G - H+ - third generation, the H or H+ icon appears. In the settings it is designated as WCDMA. 4G is the fourth generation, it is displayed on the screen, in the settings it is designated as LTE.

The coverage area varies for different communication standards. For example, 2G always has slightly more than 3 or 4G. There are certain rules for switching between these modes. The device always strives to connect to a newer and faster mode. That is, if you are in an area with a strong 2G signal and a weak 3G signal, the device ignores a high-quality 2G signal and picks up a weak 3G signal. The result is poor communication. Change the network mode to a more stable 2G for a while to eliminate the possibility that the phone is in an area with a low signal. Go to settings – Other networks – mobile – mode – GSM – this is 2G. If the device works fine with a 2G signal, this means you are in an area of ​​poor 3 or 4G reception. It makes sense to contact your mobile operator for help. If the phone doesn’t even receive 2G, we’ll look into it further.

Perhaps your SIM card is simply worn out or damaged. Replace it. The connection does not appear, then test the operation of the smartphone with a SIM card from another operator. This is necessary for the phone to register in a different network and at other base stations. If the smartphone receives normally, it means that the connection problem is on the operator’s side.

If the phone also works poorly, it is necessary to exclude the possibility of software malfunctions. To do this, a reset is used, which serves to eliminate accumulated errors in the device’s operating system. How to do this correctly, watch the video below. As a result of resetting the settings, all data will be erased, and errors will go away with them. If this method does not help, we use heavy artillery. The service center can do two things: update the software and replace faulty parts. The firmware is installed, excluding errors that may remain during an independent update. Well, we don’t recommend changing parts yourself at all.

Today we’ll look at a very common problem that can arise with your iPhone. The bottom line is that the iPhone does not see the network and is constantly searching for the network, although other functions work properly. What could be the reason and ways to eliminate it will be discussed below.

Use a known good SIM card. Despite the fact that SIM cards are quite reliable, there are cases of their failure. It's best not to use a cropped card, as they may work fine in some phones and not at all in others.

What to do first:

If none of this helps and the iPhone still does not see the network, the reasons may be the following:

#1 Software error

A network problem can occur as a result of a malfunction in the iOS operating system and can be solved by restoring the system to factory settings using the DFU recovery mode.

You might be interested:

How to restore iPhone via DFU

But there is one “but”. If the problem is hardware, that is, there is a malfunction of any component on the board inside the device, then when you try to flash such an iPhone, the process will end with an error message. In this case, you will not be able to use the phone until you have it repaired at a service center. Remember this when starting your experiments.

#2 Hardware problem

As I wrote above, the cause of the malfunction may be the failure of a component inside the phone. It usually occurs after the iPhone falls or another mechanical impact.

An attempt to restore an iPhone will most likely end in failure. Unfortunately, it is almost impossible to repair a phone with a hardware problem at home. This iPhone should be taken to an authorized service center.

Bottom line

If you're willing to take the risk, you can try restoring your iPhone via DFU, but be prepared to turn your phone into a brick. You can continue to use the device as an iPod, that is, all functions will be available except calls and SMS. If none of the methods help, you should contact the service center.

The iPhone is a universally recognized symbol of high quality, but even a mobile device that is close to perfection is not immune to a number of malfunctions. One of these is a network problem. What to do if your iPhone doesn't connect to the network?

Common causes and their solutions

Before taking your iPhone to a service center, try to independently understand what exactly caused the malfunction.

You may be able to solve the problem yourself and thus avoid costly repairs.

Incorrect date and time set

iPhone can't connect to the network? Check your date and time settings. If erroneous data is displayed and you have access to Wi-Fi, just follow these simple steps:

1. Connect to Wi-Fi, go to “Settings”, “General”, “Date and time”.

1. Activate the “Automatic” item: this will allow the device to independently determine the current time. Most often, this item is activated by default, but if you accidentally disabled it, this may affect the correctness of time determination.

1. After all that has been done, wait literally one minute so that the iPhone has time to accept the new settings. Next, restart it and check if it catches the network.

Weak signal

But what to do if the first method did not help? The reason may be your location. Some places (especially if you are in the subway or in an underground passage) contribute to a poor signal or its complete absence. This may be due to the nature of the construction or the location of a particular building. In this case, try searching for a network in a different location.

iPhone doesn't see SIM card

This can happen for a number of reasons:

• water or dirt getting on the SIM card;
• mechanical damage to the SIM card;
• your number is blocked by the operator (blocking by IMEI or termination of services due to prolonged inactivity of the SIM card);
• SIM card is not cut correctly;
• iOS crash.

In the latter case, flashing will help, in the third, contacting a company that provides communication services, and in the rest, the best solution would be to replace the SIM card. It also happens that a particular operator does not provide its services in a particular region.

To restart the network, turn on “Airplane mode” in your phone’s settings, and after a few seconds turn it off.

If this does not help, check the operator settings: select “Settings”, “Operator” and activate the “Automatic” option.

GSM signal jammers

Perhaps your iPhone does not pick up the network because the institution uses special “jammers” - devices that deliberately suppress cell phone signals. Most often this is done for the purpose of maintaining discipline or control over the actual testing of knowledge among students (schools, gymnasiums, universities, etc.).

You will have to leave the jammed area for the network to become accessible again.

Phone from abroad

If your iPhone was purchased in another country, then it is locked to the corresponding operators.

Let's say you brought an iPhone from the USA, as a result of which this device completely refuses to see SIM cards from “native” operators, but it easily works with AT&T. What to do in this case? We recommend unlocking your phone: this will allow you to use SIM cards from any mobile operator without any problems.

Unlocking methods:

1. If you bought an iPhone yourself and activated it on the AT&T network, write to the support service email address [email protected] or call the number 1-800-335-4685 . The operator will ask you to provide information from your proof of purchase from AT&T.

1. If this phone was given to you as a gift or it was purchased through intermediaries, a software unlock based on the use of baseband vulnerabilities will do. But the latest model for which this method is relevant is the iPhone 4. The most popular utilities: ultrasn0w and BootNeuter.

1. The hardware unlock includes Multi-SIM, linings for regular SIM cards and special trays (like Gevey Sim) that allow you to use different SIM cards.

1. Paid unofficial unlocking is carried out by special services such as Unlock Center, UnlockPro, Applekat and many others.

Reasons for which it is better to contact a service center

But there are also breakdowns that require the involvement of a qualified specialist to correct. Often faulty parts are responsible for the lack of network:

1. For 3GS and 3G models, the most likely problem is that the sensor circuit does not open even when a SIM card is inserted. The main reason is the installation of non-original components, which create backlash.

1. The problem may also arise with partitions and holders that do not properly secure the internal elements of the iPhone. Make sure that all screws and holders are not damaged and are installed correctly. If replacement is required, contact the service center.

1. In iPhone 4 and iPhone 4S models, the antenna contact may deteriorate over time. The problem will be corrected by either reinstalling it or replacing it completely.

1. Damaged microcircuits and cables also lead to a number of problems, ranging from a lack of network to a dim screen. But the exact cause will only be determined by an experienced service center specialist after a comprehensive diagnosis of the device.

Conclusion

If your iPhone does not connect to the network, do not rush to order expensive repairs, because the main problem may lie in the settings of the phone itself. Follow the simple instructions and check out all the options yourself.

It's rare that someone hasn't encountered a similar problem. It seems that everything should be in order: the phone is working, the SIM card is inserted, the contract with the provider has been concluded - but there is no access to the Internet. Moreover, one moment he was still there, but a minute later he was gone. A familiar situation, isn't it? If the Internet does not work on your phone, then do not despair and rush headlong to the service center.

With very little effort, you can actually cope with the problem without the help of others. The Internet on a phone is configured slightly differently than on a regular personal computer, and this often causes difficulties for users. Which interface elements are responsible for setting up the connection? What are the possible reasons for network access being denied? We will consider all these questions in our article. The most banal reasons are the ones that get the least attention. And completely in vain. Here is a short list of them:

• The Internet on the phone is disconnected for non-payment. That is, you have a negative balance in your account.
• The phone does not connect to the Internet because you are outside the network coverage area.
• The data transfer option has failed.
• In all other respects, a normally working mobile phone did not go through the automatic registration procedure.

The likelihood of the above is quite high. It is by checking these options and eliminating these problems that we will begin our fight against the disappeared network.

The simplest tests

First, we check the balance status. Each provider offers its own method. Read the instructions or dig through your contacts list - usually there is a corresponding number there. To obtain account information, dial *, then a certain three-digit code (unique for each operator), followed by the # symbol and press the call button. In response, the display shows the amount available to pay for calls. If the wallet is empty or there is an overspending of cash, top up your account and the Internet will appear.

We will assume that everything is OK with the balance. What to do next? We look at the network connection indicator. If it is deactivated, it means you are out of range. There is only one cure for this - get away from this place.

All modern smartphone models have a special option. It's called "Data Transfer". To get to this parameter, you need to do the following:

• Go to the connection settings menu.
• Click on the “More” item.
• Click on the “Mobile network” item.
• On the screen that opens, check the “Mobile data transfer” checkbox. The picture below will serve as a good illustration:

What to do if there is still no Internet? You can try turning off your smartphone and turning it on again. Sometimes it helps. The fact is that 3G networks often stop pinging after leaving the subway and in other cases entering the access zone from places where there is no network. In this case, the machine is unable to connect to the network without rebooting.

Restore settings automatically

It happens that the device’s network settings have been lost. Restoring them is not difficult and can be done in two different ways: obtain the settings from the operator or perform the configuration manually. Of course, the first method is preferable. Simply because it is simpler. There is no need to bother yourself with all sorts of technical details. For some time now, this service has become available from every mobile operator. To download settings from the provider's server, you need to call a specific number or send an SMS to the number. For Beeline this is a call to number 06503, for MTS - an SMS to number 1234, Megafon receives SMS to number 5049, and Tele2 is waiting for your call to 679.

In response, the operator will send a settings package to your phone, which will be automatically registered in your phone’s operating system - that is, you won’t have to do anything manually. If you don’t know the “magic” number of your operator, then go to their website - this information should be there.

Restoring settings manually

Theoretically, anyone can set parameters manually, but not those who are not at all familiar with the OS of their smartphone. Here is a brief guide (it should be sufficient for more or less experienced users):

• We get to the APN access point settings. Usually through the items “More” => “Mobile network” => “APN access point”.
• Create a new access point by clicking on the plus sign. A form will open with fields to fill out. Here you will need to set the connection name, user name, APN parameters and password to log into the network.
• We take the field values ​​from the following table, which contains data for each operator:

Enter the values ​​in the fields, save and reboot the phone. If after switching on the network is still absent, it means that things are bad and you will have to go to the specialists. That’s basically all you need to know about why the Internet doesn’t work on your phone.

Sony Xperia 261j phone has almost no connection, and from the very beginning, to fix the problem, the board was replaced, but it didn’t get any better, replacing the SIM card also didn’t bring any results, I don’t know what to do, please advise what to do?

Good afternoon My phone DNS S4705 is already a year old and some problems with communication have begun to arise. I have a 2-SIM phone. 1 SIM card megaphone is used for the Internet, 2 Beeline is for calls and SMS, so in the middle of the day or in the evening, first the connection for calls and SMS disappears, and later the Internet also disappears. Tell me what to do?

Good afternoon, perhaps in the evening you are in an area with an unstable communication signal. Try turning off 3G mode, cellular reception should improve.

I can’t switch to dual mode, gsm mode is selected, now the network mode is clouded, how to switch to dual mode, please tell me the phone brand HUAWEI Y511-U30

Hello. I bought an HTC 516 dual SIM smartphone. 3g internet is lost. Before that, I had a Lenovo 680 with this SIM card in the same area, everything worked. I changed the settings as best I could, but it doesn't help. Please tell me.

Good afternoon, on the phone Lenova S960 the network fails, I restore the factory settings again, it catches it, it’s completely discharged and the network fails, rebooting doesn’t help and changing the SIM too

Hello! please tell me why my network disappears on Android, and in order for it to appear again I need to restart the tablet?

Hello! Please tell me, my iPhone 5 is losing network. in different places. when on the road it disappears on various bridges and overpasses. but on a flat road it's fine. and there is such nonsense in the premises. I reboot the phone, even changed the SIM card. but the problem remains

Hello, you may be using your phone in an area with poor network reception. Make sure there is a strong network signal in the area.

Hello, my phone lost connection when I tore off the stickers on the back of the phone! What should I do?

Hello, perhaps this sticker was an antenna. In this case, diagnostics is necessary.

2 days ago I bought an Alcatel one touch idol 2 phone, before that I had fly on both phones, the MegaFon SIM card network disappears every day and is not restored, after rebooting the phone everything is fine again. It says "emergency calls only". How to deal with this?

Good afternoon, it is possible that in the area where you use the phone, the reception of the cellular network signal is not reliable. Try changing the SIM card to a new one, or to a SIM card from another mobile operator.

I have a simple android. The network mode function is clouded and does not work. Why? If even after updating the entire phone it remains the same

Good afternoon, perhaps the phone's radio unit is damaged or the phone does not support mode switching.

Good day! The problem is that the network has disappeared and does not appear again. IMEI has disappeared, could this be related to this and how can I restore it? Thanks everybody!

Good afternoon, Since IMEI has disappeared, the phone cannot register with operator base stations, so it does not see the network. IMEI often gets lost when updating the software of gray phones. It is possible to restore it using a programmer, but it is not always possible.

Good afternoon, Vasily. Try changing the SIM card to a new one. Make sure there is stable network and 3G signal reception in the area.

Good afternoon My situation is like this. Not a stable network. The Internet, that is, it does not exist. I’ll reboot either the phone or the network, at first it lasts for 15 seconds and then disappears again. Sometimes it suddenly appears where it was not, sometimes it disappears where it just was. What it is? Fly era phone

Hello, I bought a phone yesterday, for 2 SIM cards, while I’m using one, this one’s network constantly jumps, mostly one stick, then 2 or 3! Well, there is a call connection! Please tell me - is this normal?

Hello Julia. Make sure there is good network reception in the area where you are using the phone. If possible, install a SIM card from another telecom operator.

Good afternoon The Internet on the phone disappears. I turn on the Internet, everything is fine, the 4G icon is on, everything works. After some time it says “No mobile network signal”, but I can make calls. Samsung S4 phone.
P.S. The problem started after a software update, there were no problems before.

Good day, Sergey! The software update may not have occurred correctly, try resetting your phone (attention: in this case, user data will be deleted, make a backup copy). Also try replacing the SIM card. Make sure your phone is in an area with good signal reception.

Please tell me, my phone techet x-medium lost connection and no longer appears. What could this be and how can I fix it?????????????????????

Good afternoon, the connection could be lost due to a faulty radio module, bring it in for diagnostics.

Hello, please tell me what can I do if my phone does not support 3G? Are there any options to connect?

Hello! Help please! I bought an Oysters T7 D 3G tablet, I bought it recently, I also often surf the Internet, 3 days passed and the 3G module began to disappear, it seems to be turned on, the 3G icon is there, but the Internet does not work. I read user reviews about this tablet , and everyone writes about this particular drawback, i.e. that this 3G module disappears and then doesn’t work at all. Please tell me what can be done, can I reflash it, will that help? I live in the Irkutsk region, the village of Korshunovsky, 3G connection is good in our village

Good afternoon, if you are confident in good, stable 3G signal reception, then the problem is probably in the software. Re-flashing will be required. It is also possible that the radio unit itself may be faulty.

Hello, help, the network doesn’t disappear, but I can’t make calls indoors, and SMS and the Internet also can’t pick up the network, but I can only use it outside

Indoors you need to set the automatic mode, indoors it doesn’t catch “only 3G”, only automatic catches i.e. “2G-3G”

Good afternoon, I can’t switch my phone to 3G On Lenovo A516, help.

Good afternoon. In order to enable 3G, you need to go to settings, select network mode - network parameters - select GSM/WCDMA (automatic mode).

I bought an iPhone 5s and it worked fine for a month, but then suddenly the Internet began to disappear and the connection was jumping. There were no drops, no moisture got in either. I changed the SIM card, no changes. What could be the problem?

Good afternoon, it is possible that this is a malfunction of the cellular operator (base stations) or the signal power amplifier has failed, you can find out by submitting it for diagnostics.