Poor connection on iPhone 4s. Why is there no network on iPhone? What to do if the problem appeared after using the SAMPrefs or Redsn0w programs

Fair, not overpriced and not underestimated. There should be prices on the Service website. Necessarily! without asterisks, clear and detailed, where technically possible - as accurate and concise as possible.

If spare parts are available, up to 85% of complex repairs can be completed in 1-2 days. Modular repairs require much less time. The website shows the approximate duration of any repair.

Warranty and responsibility

A guarantee must be given for any repairs. Everything is described on the website and in the documents. The guarantee is self-confidence and respect for you. A 3-6 month warranty is good and sufficient. It is needed to check quality and hidden defects that cannot be detected immediately. You see honest and realistic terms (not 3 years), you can be sure that they will help you.

Half the success in Apple repair is the quality and reliability of spare parts, so a good service works directly with suppliers, there are always several reliable channels and your own warehouse with proven spare parts for current models, so you don’t have to waste extra time.

Free diagnostics

This is very important and has already become a rule of good manners for the service center. Diagnostics is the most difficult and important part of the repair, but you don't have to pay a penny for it, even if you don't repair the device based on its results.

Service repairs and delivery

Good service We value your time, which is why we offer free shipping. And for the same reason, repairs are carried out only in the workshop of a service center: they can be done correctly and according to technology only in a prepared place.

Convenient schedule

If the Service works for you, and not for itself, then it is always open! absolutely. The schedule should be convenient to fit in before and after work. Good service works on weekends and holidays. We are waiting for you and working on your devices every day: 9:00 - 21:00

The reputation of professionals consists of several points

Company age and experience

Reliable and experienced service has been known for a long time.
If a company has been on the market for many years and has managed to establish itself as an expert, people turn to it, write about it, and recommend it. We know what we are talking about, since 98% of incoming devices in the service center are restored.
Other service centers trust us and refer complex cases to us.

How many masters in areas

If there are always several engineers waiting for you for each type of equipment, you can be sure:
1. there will be no queue (or it will be minimal) - your device will be taken care of right away.
2. you give your Macbook for repair to an expert in the field of Mac repairs. He knows all the secrets of these devices

Technical literacy

If you ask a question, a specialist should answer it as accurately as possible.
So that you can imagine what exactly you need.
They will try to solve the problem. In most cases, from the description you can understand what happened and how to fix the problem.

Any modern smartphone is, first of all, a mobile phone, and then everything else. His most important function– receive calls and make calls. To do this, a SIM card with a telephone number assigned to it is installed in each device, and a special indicator indicates successful registration in the cellular network and signal strength.

iPhone does not connect to the network - what to do? This problem prevents voice calls, so we need to deal with it.

iPhone smartphones 4s, 5s, 6s and many others are technically complex devices consisting of several modules built on one motherboard. These modules operate using complex software. No program or electronic device can boast of 100% reliability - the same applies to the iPhone.

A failure in one module often affects other modules, causing equipment to malfunction. Computer users know very well what to do if a program or the entire PC partially freezes at once - press the reset button. There is even a saying: “Seven troubles – press reset.” And this saying, even though it has undergone modernization, contains some truth - If your iPhone doesn't connect to the network, just try rebooting it.

It is possible that due to some glitch, the device is unable to register with the network, requiring a reboot.

As practice shows, the reboot process really eliminates complex electronic devices from “glitches” and restores their functionality. If your iPhone doesn't see mobile network, try rebooting it - it should work.

Problems finding a network

Has your iPhone stopped receiving the network, although just recently the indicator showed reliable reception? It is quite possible that for some reason the smartphone cannot register with the cellular network. What to do? Let's try to help the smart device. To do this, go to “Settings – Operator” and wait for the search results, then click on the name of “your” network.

Problems with searching and automatic registration on the network are rare. They appear as a result of some failures on the side of the cellular operator or as a result of some errors in your smartphone. You can try to find the network manually or simply restart your device– after that it will work in it automatic search.

Another reason for failure in choosing a network may be being in international roaming. It is quite possible that you tried to register on some network manually, and then forgot to enable auto mode. There are also recommendations according to which you need to reboot Cell phones for the most correct registration in your own or a guest cellular network.

SIM card problems

Does your iPhone have poor network reception and constantly lose signal? The problem may be due to incorrect operation of the SIM card installed in the device. What can be done?

• Buy new SIM card with a new number;
• Contact a mobile phone store to replace the SIM card while keeping the number;
• Try testing another SIM card.

If you suspect that cellular network registration failures are due to problems with the SIM card, try testing your smartphone with a different SIM card. This way you can understand what exactly is causing the poor connection to the network.

Don't want to lose your number due to a SIM card failure? Contact your nearest mobile phone store and get a duplicate. Do not forget to take your passport with you, otherwise a duplicate will be denied.

Other ways to solve the problem

If your iPhone has poor network reception, this may be due to its breakdown. It is impossible to repair the device yourself, so you will have to take it to the nearest service center. Here your smartphone will be tested and repaired, after which you can safely use cellular communications.

Problems with online registration (like any problems with electronic components) often appear after dust or moisture gets into the device. Lack of normal communication with cellular networks may indicate insufficient signal strength of your operator at the current location.

And you don’t have to rely on the fact that “the iPhone can catch everywhere.” Everyone has sensitivity mobile devices, whether it’s an expensive iPhone 6s with 64 Gb or an old Nokia 1110 with a b/w screen, is approximately the same - you’ll have to take off your rose-colored glasses and try to look for a place where you can see a strong network signal.

An original solution to the problem of the lack of normal registration in the cellular network can be a reset to factory settings. You can also try restoring via DFU mode– sometimes this helps restore the functionality of iPhone smartphones.

The phone does not connect to the network

There are many fans of Apple products in Russia, and the iPhone 4 model also has its audience. iPhone phones attract the attention of users with their versatility and the ability to constantly expand functions. In addition, Apple products are rated as the most reliable around the world. However, there are situations when the iPhone malfunctions. One of common problems problems faced by iPhone users are communication interruptions.

Phone 4 problems with the network

Often, iPhone users have to deal with a problem when the phone stops picking up the network or finds it intermittently. There are situations when

• In certain places - an elevator, a subway - the phone stops seeing the network, and when exiting it hangs endlessly in search mode. At the same time, after a reboot everything falls into place;
• The network disappears without any reason visible reasons, and after some time, the connection is resumed;
• The network disappears when the phone is connected to the computer or when Wi-Fi is turned on, it turns on after a while without any additional actions;
• Sometimes the connection may be lost during a conversation. And some other situations.

Why does iPhone have poor communication?

There may be several reasons for problems with network capture. One of the simplest is the lack of coverage of the area by the telecom operator. If suspicion falls on the telecom operator, you should check the connection indicator on the phone display. If there is a signal, the automatic search mode is selected in the “settings” menu. If these steps don't work, you may want to search for the network manually.

Sometimes the problem is more serious. This applies to phones purchased through dubious dealers or brought from abroad. In this case, you can purchase a phone fixed to a specific mobile operator, the so-called “locked” phone from the English locked - blocked. To begin with, you can simply try to change the SIM card from the operator. If this does not help, then most likely the device is tied to a specific operator, and a special program is needed to decode it.

Sometimes the reason that the iPhone 4 has poor network reception may be the connection of the phone to mobile Internet. In this case, you should try disabling 3g in the network settings. Sometimes such measures lead to eliminating the problem.

And yet, in any case, it is more advisable to trust Repair iPhone 4 professional services.

Professional phone repair service

Attempts to independently interfere with the internal structure and software of the iPhone 4 may lead to aggravation of the problem and then professional repair will cost more.

The Myiphones service center carries out all stages of phone repair - from diagnostics to flashing.

Your iPhone catches poorly net? This is a rather unpleasant situation, as it becomes impossible to make or receive calls. The first thing you will need to pay attention to is whether the display shows at least some level of signal reception. To do this, you need to go to your phone settings and select automatic network search. If this does not work, then you can try to manually select the necessary network. If this does not help, and the network on the iPhone disappears, then it is best to contact our service center for help, where they will definitely help you.

In fact, iPhone constantly loses network for several reasons:

Happens when bad reception iPhone 5, 4, 4s, 3g, 3gs is caused by the fact that the cell phone is locked to the operator of the country from which it was brought. In this case, when you insert a SIM card from any other operator, it simply will not work. In order to remove all these restrictions, you need to reflash the device.

After unlocking, you will need to perform activation. All cell phones purchased abroad are based on the fact that a specific operator will receive payment for use. Therefore, it is not strange that they are blocked for a specific SIM card. Obviously, if you change the card, the iPhone will simply stop functioning with the new operator. Naturally, our specialists will successfully solve this problem. You just need to contact our service center for help.

As you can see, there are many reasons why a mobile phone loses connection. Entrust the solution to this problem to the specialists of our service center. We employ professionals who have vast experience and will solve any iPhone problem in the shortest possible time, since we have a huge warehouse of original spare parts.

Finding yourself “in your hands” with an iPhone that does not catch the network on any trip or business trip is not a pleasant situation. The boss will be annoyed that his employee is unavailable and did not submit a timely report, relatives will be worried, potential clients will be off the hook. It will be impossible to even call help or a taxi if something happens to the car. It should be recognized that modern man is heavily dependent on the GSM signal.

Fortunately, in most situations the problem can be solved weak network You can do it yourself and quite quickly. In this article we will talk about common reasons why an Apple gadget has poor network reception and ways to correct the situation.

First, what you need to check on an iPhone that does not receive a GSM signal - date/time settings. If the settings are incorrect, you should set the correct ones manually. This is done like this:

Step 1. Follow the path " Settings» — « Basic» — « date and time».

Step 2. Find out the exact time in your time zone. To do this, you can use, for example, the Yandex. Time" .

Step 3. While spinning the reels, set the correct date, hour and minute.

Step 4. Restart your iPhone and check the network.

If you have access to Wi-Fi, you can avoid manual settings time. In the “Date and Time” subsection there is an “Automatic” slider. After activating it, the iPhone independently determines the time in the set time zone - but only if the gadget is connected to the Internet.

Your humble servant prefers not to use automatic tuning time, because his iPhone “counts” an hour too late.

Problems with mobile operator settings

If the time is set correctly, but the iPhone still does not receive the network, you can suspect that the settings of the cellular operator have gone wrong. A set of such measures will help solve this problem (each subsequent step should be performed only if the previous one did not produce results):

Step 1. Turn airplane mode on and off. The corresponding slider is located at the very beginning of the menu “ Settings».

Step 2. IN " Settings"go to the section " Operator" and deactivate the toggle switch " Automatically».

Step 3. Check if the cellular data settings (APN, username, password) are entered correctly. Follow the path " Settings» — « cellular » — « Cellular network data transmission" In the block " Cellular data» and the necessary details are present.

You will find the correct parameters for the 3 leading operators in our article dedicated to. If there is a discrepancy, change the cellular data settings on your Apple gadget manually. After changing the settings, be sure to restart your device.

Weak GSM signal

If the reason for the weak signal is that the user’s location is not within the GSM coverage area, you cannot fix the problem yourself. You will have to buy a SIM card for temporary use. Although in fact the territory where absolutely There is no GSM signal, you need to look again.

There are areas where the signal is very poor in large cities. As a rule, iPhones are not detected in the subway, basements, or elevators. The network may disappear inside the building due to the fact that the concrete walls of the room jam the GSM signal. Some buildings deliberately use “jammer” devices to prevent employees from excessive Internet surfing. The jammers look something like this:

Previously, “jammers” were willingly placed in educational institutions. Now the use of such devices has been reduced to a minimum - the modern educational process requires the student to actively access the mobile Internet.

If the GSM signal is weak in the user's home, this is a reason to file a claim with the communication provider. The owner of the iPhone needs to call the number hotline and complain about the lack of network. The application will be transferred to the technical department, whose employees will make every effort to resolve the problem.

SIM card is damaged

Mechanical damage to the SIM card or its incorrect cutting can not become the reasons why there is no network on the iPhone. If the card is faulty, the SIM gadget will not recognize it at all. This is a completely different problem possible solutions which we proposed in the article “”.

However, a user suffering from a lack of network on a smartphone should still check visual inspection SIM cards. If there is dirt on the contacts, you need to carefully remove it. Even the fact that the user removed the SIM card and installed it back in the slot can help restore a normal GSM signal.

If iPhone owner there are suspicions that the gadget has poor network reception due to the SIM card, he should contact the service office with a passport and have the SIM replaced. This procedure is free and only takes a couple of minutes.

iOS crash

The failure of the above measures tells the user that the problem may be software. For the gadget to work correctly, you need Latest updates systems. To check if there are any updates available, the user needs to follow the path “ Settings» — « Basic» — « Software Update».

The gadget has broken down

If there is a physical breakdown of the iPhone, a visit to the specialists cannot be avoided. As a rule, a gadget’s failure to catch the network is caused by a malfunction of the antenna module. A broken antenna is the result of a fall or flooding of the gadget. The cost of repairs in this case will depend on iPhone models. We will collect the approximate prices in a table:

iPhone does not connect to the network after unlocking: what to do?

Network problems may appear after the user has unlocked the Sim-Lock device using one of the following programs: redsnOw, ultrasnOw, SAM Tool, SAMPrefs. The following measures will help resolve the problem:

Step 1. Reset your network settings. To do this you need to follow the path “ Settings» — « Basic» — « Reset", click on the item " Reset network settings" and enter the password.

This measure will not lead to the deletion of personal data.

Step 2. Restore iPhone via iTunes and . The likelihood that this measure will help is 90%. Remember that restoring clears the device's memory. Before you begin the recovery procedure, do backup copy data.

If the gadget is locked to AT&T, it will not work with Russian SIM cards, no matter what efforts the user makes. The unfortunate owner of such a smartphone is better off seeking an official unlock.

Conclusion

If there is no network on your iPhone, there is no need to rush to the experts for repairs. Specialists service centers are interested in finding a fault in the gadget - and they will most likely find it, “making a mountain out of a mountain.” Before sending the phone in for repair, the user should take a number of simple measures - check the time, network settings, reboot the gadget, update iOS. The chance that one of these measures will produce results is very high.