My Apple 5 phone shows no service, what is the problem? Some say it s the motherboard that s broken.

Mobile phone communication is to send and receive signals through the network base station, and then communicate with the called party, such as the mobile phone shows no service may be related to the following conditions:

1. The SIM card of the mobile phone is in poor contact with the shneme of the mobile phone card slot, resulting in the failure of the SIM card circuit and the inability of the mobile phone to communicate with the network base station.

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.

The reasons why iPhone is not serving are:

1. The SIM card cannot be read due to the damage of the mobile phone card, resulting in no service.

Replug and replug, and if it doesn't work, put a piece of paper on the back of the SIM card, and change the card if you don't have anything to do.

2. The SIM card cannot be read due to the hardware failure of the mobile phone, resulting in no service. The SIM card is loose, the SIM card contacts are oxidized, and the SIM card slot is misaligned.

SIM card contact oxidation: Use an eraser to clean up the oxidized substances on the surface of the contact, and be sure to clean the eraser shavings before insertion, otherwise these eraser shavings will corrode the plastic part of the SIM card.

How to unsell the balance:

1. Turn on and off the flight mode.

Sometimes, the signal is unstable or very poor, and only a simple solution is needed. Turn on the airplane mode, wait for more than ten seconds and then turn off the airplane mode, and many times the problem will be solved.

2. Manually select the lucky and stupid business.

Normally, your iPhone will automatically select the corresponding carrier network. However, there are times when the signal in the area is not good and there will be no service, at this time, you can try to manually choose the operator.

3. Flash or upgrade the system.

If none of the above methods work, you can consider reflashing your iPhone.

1. Please confirm whether the phone is set to airplane mode;

2. Please confirm whether the mobile phone is in arrears;

3. You can go to the place with a better signal and restart the machine;

4. You can change the card on the mobile phone to try, if it can be used normally, it is recommended to go to the business hall to test, if it still doesn't work, it may be caused by the mobile phone system, you can go to the mobile phone repair point to test the mobile phone.

Mobile phone common troubleshooting:

Symptom: The mobile phone suddenly fails to open the data connection.

1. Confirm whether there is a network, it is recommended to use it in a place with a strong signal;

2. Check whether there is still ** fee in the account, if the balance is insufficient, you need to recharge before using it.

3. Confirm whether the parameters of the mobile phone have been set;

4. Check if the USIM card has been inserted. If it has been plugged in but still cannot be used, it is recommended to check whether the USIM card has failed or replace the card for testing at the business hall;

5. Check whether there is a problem with the mobile phone, and it is recommended to replace the mobile phone for testing;

6. When the total amount of Internet traffic generated in the current month reaches the ** data limit, the system will automatically turn off the Internet access function and automatically resume operation in the next month;

7. If the number is not registered with the real name, the service will be suspended.

If it still cannot be used normally after self-service troubleshooting, it is recommended to contact the manual customer service of the home location for verification and processing.

Apple's no service is caused by the abnormal system of the mobile phone network, which can be dealt with after restoring the network settings. Take Apple 11 as an example, the steps are as follows:

1. Directly in the settings page of the mobile phone, select General Enter.

2. At this time, continue to click Restore to jump.

3. Next, you need to start the object there.

4. If there is no problem, determine the relevant operation.

5. In this way, it will return to normal according to the diagram, and the requirements can be realized.

Summary. There are many reasons why the iPhone is not serviced, and the specific reasons are: the SIM card cannot be read due to the damage of the mobile phone card, resulting in no service; The mobile phone system is malfunctioning; No service due to hardware failure of the mobile phone, such as oxidation of SIM card contacts and misalignment of SIM card slots; There is a problem with the phone settings, the card is disabled, or the wrong carrier is selected; There is no signal coverage in the area, resulting in no service, etc.

There are many reasons why the iPhone is not serviced, and the specific reasons are: the SIM card cannot be read due to the damage of the mobile phone card, resulting in no service; The hand-acre transport system is malfunctioning; Mobile phone hardware failure leads to no service, such as SIM card contact oxidation, SIM card slot misalignment; There is a problem with the phone settings, the card is disabled, or the wrong carrier is selected; There is no signal coverage in the area, resulting in no service, etc.

What to do. 1. It may be that the network signal in the area is not good, it is recommended to try it in another place. 2. If it still doesn't work, you can turn on the phone and click where to set it.

3. Find the cellular network, click the network selection, and turn on the button next to Auto to switch networks. 4. After returning to the stool, you can restart the mobile phone to check whether there is a network, or take out the mobile phone card to re-install the jujube hunger.

There are several reasons why Apple's mobile phone has been showing no service. The first aspect is that there may be no network in the area where you are located, or the network signal is really poor, then in this case it will show that the mobile phone has no serviceIn this case, as long as there is no signal, the mobile phone will automatically restore the service, so don't worry, this situation is often a network problem, and it has nothing to do with the mobile phone, so don't worry too much.

The second reason is that this can also happen when the phone is in arrearsIf it is for this reason, the fastest solution is to recharge the mobile phone in time, and sometimes the recharge will still show no service after the recharge is completed, so the easiest way to deal with it is to turn on and off the airplane mode or restart the mobile phone, so that as long as the mobile phone is successfully paid normally, the mobile phone will smoothly resume the relevant services.

The third reason for the lack of service on the mobile phone is that the place where the mobile phone card is inserted is looseAt this time, the main reason for this situation is that the mobile phone card is loose, so take out the mobile phone card directly, and then reinstall the mobile phone card, and then restart or switch the airplane mode will quickly return to normal, so don't worry or panic when the mobile phone has no service, the mobile phone itself has no problem, most of them may be the above three problems.

Therefore, when Apple's mobile phone has been showing no service, we only need to think about the reasons for this situation from the above three aspects, most of the cases are one of the three, of course, it is not excluded that the mobile phone itself is broken, of course, the probability of the mobile phone being broken is still relatively small, most of them are caused by mobile phone arrears, and the probability of the other two reasons is also relatively low, of course, it is not excluded that there are two other reasons.

Reset the system settings of the mobile phone, and the display of no service may be a problem with the network system of the Apple mobile phone, open the Apple settings, click the general to enter, click to restore in the drop-down page, and restore the network settings. If that doesn't work, tap Erase all content and settings to restore your phone to factory settings.

There is no service on the mobile phone, or it may be that the mobile phone card is not installed well and some contacts are poor! You can unplug it and reinstall it! If there is no improvement, it means that the system version is too old and needs to be upgraded! If the upgrade doesn't work, it's a hardware problem.

No service is not your card not loaded properly!