What should I do if my iPhoneXS suddenly has no signal?

Method steps.

Method 1: There could be several reasons.

1。Do not use a metal mobile phone case to avoid wifi signal shielding, resulting in poor wifi signal.

2。If the phone or even other wireless signals are not good, there may be a mobile phone software or hardware failure, you can first reset the phone factory state elimination, or through the mobile phone after-sales service center professionals mobile phone software and hardware comprehensive testing.

3.The mobile phone and wifi router are running software errors, it is recommended that the mobile phone and wifi router be shut down and restart the attempt.

4。Check the normal ventilation and heat dissipation of the WiFi router to avoid the instability of the WiFi router caused by high temperatures.

5。In the natural environment and barrier-free environment, the wireless signal coverage radius of the wifi router is about 20-30 meters, so try to reduce the distance and physical barriers between the mobile phone and the wifi router to ensure good wifi signal coverage quality.

Method 2: 1: Switch the airplane mode.

When we use the iPhone in our daily life, we occasionally find that the signal diving is unstable, sometimes there is no signal, sometimes it is full, there is only one grid, there are netizens to test, and it can be adjusted by "airplane mode". Turn on the airplane mode, wait for about 5 seconds, then turn off the airplane mode, and you will find the signal "flying" back on your iPhone!

2: Manually select the carrier.

Generally speaking, after inserting the SIM card into the phone, the iPhone will automatically match and connect to the corresponding carrier network, but many netizens can manually select the carrier network when they find that the mobile phone signal is not good or the service is not displayed. Enter the operator option in the settings, turn off the "Automatic" function, and after a few moments, the network operator will be optional, and the user can simply select the appropriate operator according to their mobile phone card.

3: Restore the network settings.

While trying both methods, the cell phone signal is still poor, and users can also try resetting the network settings. Operation: Settings - General Restore and restore network settings.

4: Re-flash the machine.

There are many users who report that after upgrading to iOS, there is frequent no service or signal expiration failure, if the above methods cannot solve this signal problem, it can be improved through system upgrade. iPhone connect to the computer, run iTunes, click "Update Restore iPhone" while shifting, select the firmware of **, and start flashing the machine. It should also be reminded that the current iOS cannot be jailbroken, and users who want to jailbreak can take advantage of the iOS authentication channel before the upgrade is closed, and don't forget to back up the machine before jailbreaking.

Reboot, or power on/off.

There are several possible reasons why your phone suddenly has no signal:

First: the signal is relatively weak, resulting in no signal, change to a better signal.

Second: If you accidentally set it to airplane mode, you need to be able to turn on the control center, turn on the airplane mode first, and then turn off the airplane mode, so that the mobile phone can search for the mobile network Xinzifeng again.

Third: It may be that the SIM card slot is damaged, and you need to change the SIM card slot.

Fourth: Hardware problems, the trace hole needs to be sent for repair.

Fifth: You can go to the location on the map for consultation and maintenance.

Turn on airplane mode and turn it off again.

There are several possible reasons why your phone suddenly has no signal:

First: the signal is relatively weak, resulting in no signal, change to a place with a better signal Second: accidentally set to airplane mode, you need to be able to open the control center, first turn on the airplane mode, and then turn off the airplane mode, so that the mobile phone can search for the mobile network signal again.

Third: It may be that the SIM card slot is damaged, and you need to replace the SIM card slot, try Fourth: Hardware problems, you need to send it for repair.

Fifth: You can go to the location on the map for consultation and maintenance.

Answer: Hello, 1. The SIM card of the mobile phone is in poor contact with the shrapnel of the mobile phone card slot, resulting in the SIM card circuit not working, and the mobile phone and the network base station cannot communicate.

2. The mobile phone is incompatible with the system due to the application software for installation, resulting in the system software closing the modem in the mobile phone signal processing circuit, at this time you can turn off the mobile phone and then restart, the modem in the mobile phone signal circuit will be restarted, and after the signal is normal, delete the suspicious mobile phone application software installed before the problem.

3. The SIM card of the mobile phone is not registered in the network, at this time, you can insert this SIM card into another mobile phone, if it also shows no service as the reason for the SIM card.

4. If the SIM card of the mobile phone is accidental, and there is no signal in the network signal coverage area, it fails to reconnect to search the network and merge the book, at this time, you can manually search for network registration under the menu of Settings - General - Network - Network Operator.

5. If the signal coverage of the mobile phone SIM card network operator is not available, you can change the location to an open area, and then check the mobile phone signal grid display, if the display is normal after changing the location, you can call the network operator service ** for feedback and complaints.

6. **The card has been used for too long, and with a valid certificate, you can go to the local business hall to reapply for a card.

It depends on the situation, whether it's a problem with the mobile phone or a problem with your operator, it's possible that the mobile phone you use is stuck in your location and the signal is weak, so there will be no signal, of course, there is also the baseband signal of Intel used by Apple mobile phones is relatively poor, this can't be helped.

Apple XS has no signal, generally because the signal is not covered in the place, all will have no signal, you can change the place to see if there is a signal.

Does your Apple XS Max have a poor signal and often can't connect to the Internet, do you know what's going on?

Normal The disadvantage of this one is that the signal is poor.

In the process of propagation, electromagnetic waves will be affected by various factors such as topography, landform, high-rise buildings, climate, etc., so that only a very weak signal can be received in a certain range, such as the basement of some floors, the first and second floors can not receive the signal, which is a very normal phenomenon. This phenomenon can be solved by increasing the density of the base station and increasing the coverage of the base station. Since the construction of the project requires a process, please be patient.

1. Do others have a signal? The same card that you have that you don't may be a problem with the phone.

2. Fly and turn it on again, if it doesn't work, it has nothing to do with the system. Most likely a hardware issue.

3. If you don't owe money, it's likely that you've fallen over the baseband. . .

Or it is the operator's reason, or you are in an environment without signal, you can try to call the operator's customer service, or you can find a place with a good signal.

There has been no signal is a problem,,Occasionally, the signal is not good,Or the signal is weak,,This should be a common problem of Apple's mobile phone.。。

1.Damage to the SIM card leads to no service due to inability to read the SIM card, 2The hardware failure of the mobile phone leads to the inability to read the SIM card resulting in no service, 3

Software conflict resulting in inability to read the SIM card resulting in no service, 4There is no signal coverage in the area, resulting in no service.

If there is no service for the Unicom mobile phone card, there may be the following reasons:

1.The mobile phone card is not plugged in properly, and the contact is poor;

3.The mobile phone card, card slot or mobile phone terminal is damaged;

4.The status of the mobile phone card is abnormal (such as shutdown, closed account, etc.);

5.The mobile terminal does not support China Unicom.

Here are some things you can try:

1.Turn the phone on and off and restart it to test it;

2.Reseat the mobile phone card and check whether the card slot is loose or deformed.

4.Test whether the mobile phone card or terminal is faulty;

5.Verify that the status of the SIM card is normal;

6.Check whether the mobile terminal supports China Unicom.

If the above methods still cannot solve this problem, it is recommended to contact the local Unicom customer service or consult the official customer service of the mobile phone for understanding.

Isn't it that there is no signal in the place where you stay? Or you turn it on and turn it off and try it once.

First, the iPhone can't type**, and it can't be connected** for the following reasons:

1. iPhone network settings are incorrect.

2. There is a problem with the SIM card.

3. The signal of the network operator is unstable.

4. iPhone system failure or hardware failure.

Second, the general treatment method:

1. First check whether the signal is not good, it is best to use a friend's iPhone, try to change the card, and eliminate the problem of the card.

2. If the card is fine, it is recommended to restore the iPhone network settings to try, and open the settings of iPhone6 in turn--General--Restore--Reset Network Settings.

3. Dial 112 without a card, try a few more times, it can explain that it is a problem with the operator or card, or it may be improper settings or software conflicts, upgrade to the system or restore the system; If you can't get through 112, it's a problem with your mobile phone, and you can go to after-sales maintenance.

iPhone XS Max No Signal Solution 1, Cross-test and troubleshoot.

First of all, it is recommended to replace the SIM card to try to replace a few more SIM cards. If it is not a problem with the SIM card after replacement, it is recommended to replace the card tray for testing, sometimes the card tray failure will also lead to poor contact of the SIM card's chip, resulting in no signal on the mobile phone.

iPhone XS Max No Signal Solution 2, External Configuration Problem.

Because there is a signal antenna on the tail plug, a faulty tail plug can also lead to no signal or poor signal. Therefore, although it is a signal failure, it is also possible that the tail plug is faulty, and the tail plug should be replaced to determine whether it is caused by the tail plug problem.

iPhone XS Max No Signal Solution 3, Motherboard Failure.

If it is a motherboard problem that causes the failure, the probability of problems with the MF, power amplifier, and baseband CPU is generally higher, so it is generally tested and troubled from these three places first. If it involves motherboard problems, we recommend that you hand it over to a technician at an officially authorized Apple repair point to deal with, as disassembling and repairing it without permission is likely to cause other more serious failures to the phone, such as the phone's touch screen failure, stuck, and in the worst case, the phone may not turn on.

1.Damage to the SIM card leads to no service due to inability to read the SIM card, 2The hardware failure of the mobile phone leads to the inability to read the SIM card resulting in no service, 3

Software conflict resulting in inability to read the SIM card resulting in no service, 4There is no signal coverage in the area, resulting in no service.

Normal. Because this version of the Apple mobile phone and Qualcomm are in a lawsuit, the signal baseband is not Qualcomm's, but Microsoft's, so the signal is particularly poor, and it is the worst version. It shows that it is not a big company, and it must be done, and there is a specialization in the art industry. Therefore, these R&D are particularly expensive and pay attention to time accumulation.

If the metal contacts between the card and the mobile phone are not sufficiently contacted, you can try to reinsert the SIM card.

If the card is damaged or there is a problem with the mobile phone, you can change the phone to test whether it is the SIM card or the mobile phone is faulty.

3.If you are in a dead zone or suddenly have no signal, you can test it in another place and pay attention to whether the mobile phone signal of other users around you is normal.

3.If the mobile phone card is in arrears or is shut down, you can pay off the arrears and turn on the phone.

There are several possible reasons why your phone suddenly has no signal:

First: the signal is relatively weak, resulting in no signal, change to a better signal.

Second: Not a small gesture is set to airplane mode.

Signal. Third: It may be that the SIM card slot is damaged, and you need to change the SIM card slot.

Fourth: Hardware problems that need to be sent for repair.

Fifth: You can go to the location on the map for consultation and maintenance.

1.It may be that the phone card is broken.

2.Not in the service area.

3.It may be that the communication hardware of the mobile phone is broken.

Your shirt is good iPhoneXS Max has no signal and no service, it is very likely that the signal receiver in the mobile phone is damaged and caused by the parsley, and the construction or bureau will ask you to go to the mobile phone repair shop for repair.