10 Ways to Strengthen and Improve iPhone Cellular Signal

Many of the features and capabilities provided by the iPhone device are completely dependent on having an internet connection and this can be done through Wi-Fi network or cellular data and for the latter, sometimes the user faces some obstacles and difficulties. that prevent it from connecting to the Internet through cellular data, at home or even at work, where there are obstacles that weaken the signal on the iPhone and then you cannot make calls, text messages or even connect to the Internet. , and to do this, we will look at 10 methods in the following lines that work to strengthen and improve the cellular signal reception of your iPhone device.

Refresh cellular signal

The iPhone works by constantly searching for the strongest signal from the cell towers surrounding it to ensure the best reception and sending of phone calls and text messages, but this feature sometimes stops for one reason or another, with effect. about the signal and all you need to do to solve this problem is to update for help by following these steps:

First method: By turning Airplane mode on for a while and then turning Airplane mode off again until the iPhone finds a nearby signal tower to get the best and strongest signal from it.

Second method: By restarting your iPhone device until the device starts searching for the nearest cell tower again and then receives a strong signal.

Antenna replacement

As a rule, an antenna cannot be repaired if it breaks, so it cannot be repaired. There is only one way out - replace it.

Disabling the display module
Disconnecting cables
Removing the battery, vibration motor, motherboard, camera and headphone jack

Only after all this is it possible to gain access to the antenna. The entire replacement procedure usually takes no more than 30 minutes. It is also worth noting that all components are small in size and very sensitive to mechanical damage.

Update your cellular network settings

As with the iPhone operating system and all apps, your service provider also releases periodic updates to ensure quality of service. If your device does not have the latest update, it may cause your iPhone to not receive a cellular signal. is completely reliable, so you need to make sure that you have installed the latest cellular network updates by going to the General menu on the settings page, or view the version by checking the cellular network settings, while making sure that you are connected to the Internet via Wi-Fi, Wi -Fi or cellular data.

How to diagnose an iPhone

The first thing you need to understand is whether there was a strong mechanical impact on the iPhone, such as a fall or bending, which could lead to the modem chip falling off. Next, we disassemble the smartphone and begin diagnostics, first we do a visual inspection of the board using a microscope to see if there are any burns or cracks on the modem power controller (bottom picture in blue) or on the modem itself (top picture in orange).

We also pay attention to the integrity of EPROM_RF. This chip is responsible for the operation of the network part of the phone. If the seal is chipped (the chip body is damaged) or replaced with another one, the network on such an iPhone cannot be restored.

If there is no visual damage, then you can warm up the modem and power controller one by one, and then try to start the smartphone; if the network appears, this will indicate that the modem or power controller was in the dump; you need to unsolder it and resolder it in place. If rolling does not help, then change the power control to a new one, this should help. The saddest option is the failure of the modem; unfortunately, Apple did this to the modem and a number of other microcircuits such as processor, nand, etc. are interconnected and if you change it, then you have to change everything, and in most cases this is not advisable.

We will also check the SIM detection when the smartphone is turned on and the SIM card is inserted, there should be about 1.8 volts, if there are none, then you need to figure out why, and this is well explained in the last video.

That’s all, I hope, the above material will help you better understand the problem of the lack of network on the iPhone 7. I would be pleased if you wrote some comment on the topic of this article and shared your opinion. Thanks until new articles.

Wi-Fi calling

This feature is one of the iPhone features that is almost required for all versions of iPhone, in addition to several other brands of phones running the Android operating system, and Wi-Fi calling is very useful when you are in a place with limited cellular coverage or when not. The coverage exists from scratch and is similar to VoIP technology.

The Wi-Fi calling feature relies on the Internet for traditional phone calls that are made over a cellular network, and most mobile companies now provide this service. You can take advantage of this feature by activating it in the Wi-Fi settings on the main settings screen.

Please note that if the Wi-Fi signal is poor, the audio quality of phone calls will be affected and the user will not feel much difference when using a cellular or Wi-Fi network to make calls.

Flashing iPhone 6 to fix problems with weak Wi-Fi and GPS signals

Connecting iPhone to computer and laptop without cable via Wi-Fi

As a last resort, you can try to reflash the Apple device yourself or seek help from a specialist to solve this problem. The iOS operating system may simply fail and need to be replaced, which will also help normalize Bluetooth operation and fix other problems.

Manually

The flashing instructions are considered effective for all iPhone and iPad models; there are no significant differences. First you need to prepare before this procedure. You need to download the firmware itself.

An important point: it must be in .ipsw format, another format may be a virus.

The firmware should be selected individually, it depends on the version of the iPhone. Please note that the smartphone is shipped worldwide, and the Network may vary from country to country. Therefore, it is better to choose a typical OS with GSM or CDMA to avoid problems.

The firmware version indicates the product model and series. By turning the phone over, you can find out the model; technical information is written below. The word “Model” is followed by a code of letters and numbers. You can find the firmware on reliable sites, of which there are many on the Internet. It is not possible to flash the firmware if the device tracking function is enabled on the smartphone. Otherwise, iTunes will report an error and will not download. You also need to check your iTunes version. If it turns out to be old, failures or errors may occur.

iPhone firmware can be flashed in two ways: using RecoveryMode or DFU. The first method helps restore the system in case of failures; it is an emergency mode. The second method is almost the same, but the firmware is installed not through the OS, but bypassing it.

To reflash the device using RecoveryMode, you need to do a number of steps:

Disable the device.
Hold the Home button and connect the smartphone to the PC using a USB cable. The computer will automatically detect the device and its location in RecoveryMode.
Launch iTunes on your PC.
Receive an offer to restore the gadget. Confirm it.
Hold Shift (Windows) or Alt (Mac) and click “Restore iPhone.”
Then specify the downloaded firmware with the .ipsw extension using Explorer. The procedure has started.

At the end, you need to disconnect the device from the PC, reboot and check its working condition.

Firmware can be flashed in DFU Mode. The procedure is similar to that in many respects. Flashing instructions:

Connect your phone to your PC and turn it off.
Press and hold the Home and Power buttons at the same time. Hold them for 10 seconds. Then you need to release the Power key and continue to hold the second one until the smartphone reacts appropriately.
Launch iTunes on your PC and select your device.
Read also: How to choose a memory card for a DVR that will work for a long time
Hold Shift or Alt and click “Restore iPhone.”
Specify the downloaded firmware file using Explorer.
Wait for the process to complete and turn on the iPhone.

In both cases, this procedure will take no more than 20 minutes and will not cause significant difficulties. This way you can save a considerable amount.

With the help of a service specialist

If the user doubts that he will reflash his gadget on his own and fix the problem, he can turn to service specialists for help. They will do almost the same steps for flashing the device described above. The price of service will depend on the model of equipment and the presence of additional defects.

Check iPhone folder

Using an iPhone case is necessary to protect the device from bumps and drops, but the thickness of the iPhone case may limit the phone's ability to receive a cellular signal, but this effect is limited and only occurs if the signal is really weak. Try removing the cover. Call your phone for a few days to see if the signal improves.

On the other hand, some phone cases are made of metallic materials which may in one way or another prevent the phone from receiving a good cellular signal, so you should check the signal strength in case of placing the case, and when removing it, it is always recommended to use thin cases made of non-metallic materials .

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How to determine your gadget model?

Often, the order turns out to either not indicate the device model at all, or it is indicated incorrectly. As a result, technicians have to clarify this information themselves. This leads to additional wastage of time, which is not beneficial for either you or us.

Meanwhile, it is very easy to find out the gadget model. Firstly, it is indicated in the technical documentation, but, as practice shows, not everyone keeps the instructions. Secondly, this information is indicated on the device body.

Damage or failure of the SIM card

In the process of independently solving the problem of finding a network, you should pay attention to the SIM card. Often it can be damaged during pruning, or fail when exposed to moisture or for other reasons. Pull out the SIM card using the key located in the box under the phone, and put the SIM card in place. Turn on and off airplane mode several times.

iPhone blocked by carrier

It happens that a gadget is blocked by a telecom operator for a SIM card of a certain operator. The phone simply does not support other SIM cards, it says “no network”. You can contact our service center, we can unlock it using imei. As a rule, such a service takes from several days to 10 days, depending on which operator the device is locked to.

Damage to the antenna responsible for receiving the cellular network signal

There are often cases when the iPhone stops receiving the network due to damage to the antenna due to impact, moisture and oxidation, previous repairs, or defective spare parts. To eliminate such a malfunction, you need to contact us at iConceptService, where qualified technicians will diagnose and repair the device.

Accumulator charging

It goes without saying that an iPhone is useless if the battery is dead. However, a weak battery can limit the device's ability to search for the nearest cell tower coverage, which is also reflected in a weak signal and then poor sound when making phone calls.

To prevent the battery charge from causing a weak signal, it is necessary to maintain the charge level above 50%.

What does it mean to reset network settings on an iPhone?

In some situations, the iPhone loses the network due to incorrect network connection settings. Similar situations occur both when the device itself malfunctions and when errors are made when encrypting information by a cellular operator.

Reset

Usually, when connecting to the network for the first time, the iPhone or iPad automatically sends a unique IMEI to the operator. This is a unique device code consisting of 15 digits; there is no other identical one in the world.

iPhone update

In military strategies there is a term known as "scorched earth", which means burning anything that the enemy can benefit from during a war. The strategy here is to reboot the cellular network as this method eliminates many operating system errors and issues. Wi-Fi and Bluetooth, but in return you will lose all settings, so you will need to connect all Wi-Fi and Bluetooth accessories again, and if you want to try, go to Settings, then General, Reset and then tap on Reset Network Settings .

How to change the access point on iPhone?

On iPhone, go to Settings > Cellular > Data Options and tap Turn on LTE, or go to Settings > Mobile Data and tap Turn on LTE. If your carrier supports Voice over LTE (VoLTE), the following options will be displayed.

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SIM card

A weak cellular network may be due to a problem with the SIM card you received from a contracted mobile company.

This is one of the reasons why the user does not usually think about it, but it can be one of the main reasons for this problem.

To verify this, you can remove the card from the iPhone, then reinsert it into the device, and then restart the iPhone again.

Another problem that can cause a weak cell signal is that something went wrong when programming the card, and although this is rare, you may be able to get a replacement card from the cell phone company it contracted with.

Solution

So, it’s worth immediately dealing with those cases whose solution does not depend on the actions of the smartphone owner:

Poor coverage. We'll have to come to terms with this for a while. Or try to find a higher, open point where the signal can be picked up;
If the SIM card malfunctions or does not work well, you will need to change it at the nearest communication store - and this will be the only solution;
If troubles begin to arise after poor-quality repairs, it is recommended to take advantage of the provided warranty or go to another service center. You should do the same if you suspect that the modem part of the gadget is faulty.

Another interesting situation is that a person could purchase a mobile phone that was initially “tailored” for the work of a specific operator. This situation usually arises when people order equipment abroad. In this case, it will also not be possible to fix something on your own. You need specialized software and the ability to work with it. Usually, everything you need can be found at repair services. How to check exactly such a case? In the following way:

Visit the settings section, where you go to “General”;
Click to go to the “Standards” tab. At the very top of the screen information on the modem used in the equipment will be indicated;
Option A1901 allows the use of GSM networks, including those used in the Russian Federation;
But the A1902 and A1858 are designed to work with CDMA networks used only in Japan, China, the USA, and Oceania. That is, it will not be possible to launch it in our country without professional intervention.

Signal amplification devices

We must mention that using a device to boost your cellular signal is quite an expensive option, but it can be an effective solution to the weak network problem that you suffer from when you are at home or at work.

The auxiliary equipment picks up the cellular network signal with all its defects, distortion and noise, then cleans it and removes any interference or defects in it, and then rebroadcasts it at the location where it is placed, as if it were operating as an additional coverage tower in your home that gives you a strong and clear cellular signal.

There are other devices that work to boost the signal, but the idea behind how they work is a little different, for example, femtocell devices are based on the idea of converting a Wi-Fi signal into a cellular signal and owning it. The device may be a radical solution to the problem of weak cellular signal, but the problem is the difficulty of finding such a device. However, your carrier may request availability information.

Diagnosing the problem why iPhone 7 does not catch the network

Phone out of range. For example, after going on a trip or moving to another city, you discovered that your iPhone 7 does not receive the network. Reboot your phone - an available telecom operator will connect automatically. If this does not help, then try going to “Settings”, select “Operator” and turn off automatic operator selection. If there is no result in this case, then all that remains is to buy a SIM card from an operator operating in a given city.
The phone has been flooded or dropped. The accumulation of moisture inside the phone often causes corrosion of the board. If dropped, important components on the motherboard may also be damaged. Such repairs are considered quite complex: a whole set of microcircuits, switches, amplifiers, receivers and other elements that fail both together and separately are responsible for the operation of the phone. To determine the location of the problem, you need to ring the modem's power circuit and check all working elements. Next, the faulty parts are soldered off and new ones are installed. The best solution here is to take the device to a service center.
iPhone 7 does not connect to the network due to a software glitch. If a poor signal or complete lack of network is caused by system malfunctions, then diagnostics are needed to correct such a problem. iOS failure requires flashing the phone, which can be done in the service (in about 20 minutes).
Network suppression. The signal is jammed by walls made of iron, brick or concrete, as well as in elevators and basements. Buildings are sometimes equipped with special network suppression systems that create interference. In any of these situations, the easiest way to solve the problem is to just go outside.
iPhone 7 was imported from another country. The network is not caught due to the fact that the phone is programmed to interact with a specific telecom operator. To unlock such an iPhone, it is better to contact the appropriate services.
The signal reception antenna is faulty. If you see “No network” on your iPhone screen, then the problem may be a faulty antenna. The antenna is attached to the motherboard using a coaxial cable and a special connector - under mechanical stress it can jump out of the socket. At the service center, the antenna will be returned to its proper place with the addition of a small amount of sealant. As a result, the iPhone, which did not see the network, starts working like new.

The lack of network on the iPhone 7 is often fixed by simply resetting the settings. Go to “Settings”, select “General”, “Reset” and click on “Reset network settings”.

If your iPhone loses network, there are several ways to solve the problem.

Someone calls you, and after some time the connection is disconnected and the call is terminated.

Solution: look carefully to see if you have 4G turned on. This, unfortunately, may be the main reason for the loss of connection on the iPhone 7. Check and turn off 4G when you are not using it!

If it’s simple for you, the network disappeared for no reason.

Solution 1: Restart your phone. No matter how trivial it may sound, it helps, but not always.
Solution 2: Check your SIM card tray for mechanical damage. The reason for the loss of communication may be a faulty tray (a damaged tray may not tightly fix the SIM card on the board, which is why the connection is lost). If traces of damage to the tray are found, simply replace it.

How to replace the SIM card tray

Remove the old tray using a tray clip. Insert the new tray along with the SIM card back into the hole and secure it tightly.

Solution 3: The problem may be a faulty SIM card. Remove the SIM card from the tray using a tray clip and check the SIM card for damage. How to make sure that the SIM card is working? Just insert the SIM card into another phone, if everything is fine with the connection, then the problem is not in the SIM card, but if on the contrary, then the problem is in the SIM card. Ask your operator's office to replace the SIM card. Now this service is equivalent to buying a new SIM card, but the advantage is that you can save all your contacts.
Solution 4: Set the time correctly. Yes, I agree, it’s funny... but in most cases this is precisely the problem with communication. The iPhone cannot understand where and at what time you are, therefore, it is difficult for it to connect to the nearest satellite, which is why the network disappears.
Solution 5: The problem may be battery and timing issues. We need to get to the battery and turn it off.

How to replace the battery

DISABLE WI-FI (This is a must!)
Turn off the smartphone
Unscrew the two external bolts on the smartphone.
We pick up the smartphone display with a spatula or a special spatula (you can use a pick) and, starting from the lower left corner, draw it around the entire perimeter, thereby releasing the latches.
Carefully raise the display to 90 degrees and unscrew the 2 bolts that hold the protective rivet under which the battery cable is located.
We disconnect the battery cable for a few seconds and connect it again.
We tighten the bolts, put the display in place, and tighten the external bolts.
We turn on the phone. The network should work correctly.

Often, after a fall, flashing or updating the phone, or replacing a SIM card, the smartphone does not connect to the network. The message “no network” appears and, in fact, the device turns into a useless, expensive “brick”. There are usually several reasons for this problem. Let's look at the most common of them, while at the same time paying attention to ways to troubleshoot a problem called “no network”.

Incorrectly set time in settings

This happens after updates and flashings, as well as after repairs in service centers. To fix this problem, you need to connect to a wi-fi network. Next, go to Settings - General - Date and time and activate the Automatic option. Reboot your phone. Please note that these actions must be carried out while being connected to the wi-fi network, otherwise the cellular network will not come to life.

Cellular operator settings and updates

Have you checked the date and time, but the “no network” message still appears? Perhaps the operator does not provide its services in the region where you are located. Then you can try activating airplane mode for a few seconds. We do the same if you are in your home region. It happens that the connection is “buggy” and you just need to restart it. You can also turn the device off and on. If this does not help, then you need to check the operator settings. Go to Settings - Operator and check whether the Automatic mode is activated.

Don't forget about updating the system. Connect to Wi-Fi again. Go to Settings - General - About this device. If updates are available to you, the operating system will ask you to install them. If Wi-Fi doesn't work, connect to iTunes. Then update your device to the latest version of iOS.

Damage or failure of the SIM card

iPhone blocked by carrier

Damage to the antenna responsible for receiving the cellular network signal

Damage to the modem part and eternal search for the network

If the modem part on the motherboard is damaged by an impact or moisture, the phone will constantly search for the network and the modem firmware will be missing from the settings. To make sure your modem is not damaged, go to Settings - General - About this device - Modem firmware. If the field is empty, then your phone has been damaged by the modem and only qualified service center technicians can help you here. It will take painstaking, complex work on the motherboard, which will allow you to restore the modem part and return the device to the ability to see the network. Our craftsmen have extensive experience in this type of work, which allows us to carry out even such complex repairs.

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From time to time, users of Apple gadgets encounter a similar situation.
If there is no network on your iPhone
, first you need to check whether there is at least some signal reception. To do this, go to the settings and activate automatic network search, that is, we search for the network manually. Those who know will immediately pay attention to the corresponding pictogram.

Our article is devoted to the “symptoms” of such a problem, as well as providing first aid to your mobile device. The fact is that in some cases, contacting a specialist may not be necessary, since the user is quite capable of troubleshooting the problem on his own.

No network on iPhone: alarming symptoms

It happens that on our device we see an inscription indicating that there is no network, but at the same time we are in a network coverage area with an excellent signal. It also happens that a smartphone loses connection when it is outside the coverage area, but after returning there the connection does not appear.

Another indicative symptom is the situation when the word “Search” is displayed in the status. In addition, when you go to the main settings, the “About this device” menu, you will notice the absence of any information in the “Firmware” item.

What to do if there is no network on iPhone?

So, if we are faced with one of the above alarming symptoms, or the network is absent under any other conditions, it is worth trying to perform the following manipulations sequentially.

First, turn on and after five seconds turn off “Airplane Mode” by going to iPhone settings. You can also restart the mobile device itself. In addition, it is recommended to remove the SIM card and make sure that this is indeed a cellular operator. You should also check it for mechanical damage, or simply for the degree of wear. After this, you can try installing the SIM card again.

Another way is to reset your network settings. To do this, you need to go to the main settings, select “Reset”, and then select “Reset network settings”.

If there is no network on the iPhone and we are outside the country, we try the following. Select the “Operator” menu through the settings and click the “Automatic” item. If iPhone detects any mobile network, a corresponding menu will be displayed.

It happens that the “Operator” section is not available abroad. In such a situation, you should contact Apple. Disable the above “Automatic” option. After a few minutes, a list of mobile operators that are available should appear. This indicates that our device is working properly. If all of the above manipulations do not help, it is recommended to contact your mobile operator.

It happens that network problems are caused by our careless handling of the smartphone. For example, failure may be the result of physical damage or moisture ingress. In addition, the problem is sometimes due to the fact that the SIM card has failed. In any case, it will be possible to identify the cause only after a complete diagnosis of the iPhone.

Today, cellular communications have a huge coverage area. However, it also happens that the iPhone writes “no network”. What to do in this case? This depends on several factors:

Weak mobile operator signal
Technical problem

Alternative service provider

If none of the previous procedures solved the problem and strengthened the cellular signal, there is no substitute for choosing a different service provider that can provide you with reliable coverage in the area where you are located.

You can monitor the coverage map of cell phone providers in your country to see what coverage is best for your area.

The first two options didn't help?

Most likely, the task is more difficult than it seems. If there is no network on the iPhone 6, the problem is in the health of the gadget’s hardware or SIM card.

Remove and reinsert the SIM card or ask your operator to replace it with a new one.
If this does not help, then the problem is with the motherboard or antenna. Open “General” -> “About this device” in settings. At the bottom there should be an IMEI number (device serial number). Its absence indicates a malfunction of the motherboard.
IMEI in place? In this case, the reason most likely lies in the operation of the antenna. You need to replace it at the service center with a working one.

How to reset iPhone network settings

You can reset the network settings yourself, without resorting to the help of specialized centers. To do this, follow the sequence:

First, go to the “Settings” of the phone.
In the “Basic” section you need to find the “Reset” line.
Once you go into it, several options will appear, including the line “Reset network settings.”

By agreeing to the action, the user must understand that some data will be lost, including connection passwords that were previously saved.

If after all the steps taken it was not possible to restore the network, you will have to contact an Apple service center. In it, specialists will test the device, identify the problem and, possibly, fix it.