Why does the Apple phone always have no signal?

1: Check whether the SIM card slot or SIM card is damaged.

2: You can insert other mobile phone cards to try, and then put the SIM card of the mobile phone itself on other mobile phones to see if there is a signal, if the card slot is damaged, it is recommended to replace the card slot, if the SIM card is damaged, please go to the business hall to replace the SIM card.

3: If there is no signal on the mobile phone caused by network delay, you can turn on the airplane mode of the mobile phone, turn it off after five seconds, or restart the mobile phone.

4: The signal in the place is not good, and the signal cannot be found, so you can search in another place.

5: System problem, you restore the system to factory settings, try again, if there is still no signal, then it is not a system problem, it is a hardware problem.

6: This is a signal receiver problem, repaired a lot of this machine, to the Japanese version and the American version of the more, Hong Kong also has a part, this general maintenance method is to replace the signal receiver - a small chip on the motherboard, OK, ** is not very high hundreds of dollars to get.

7: However, this kind of chip-level maintenance has to go to the factory store, and the ordinary small store can't do it at all. Most small shops in the mainland will give you a screen and a shell at most, and it will not involve circuits.

8: You can re-modify it by clicking "Carrier" on the "Settings" interface in your phone and change it to "Manual".

9: Turn airplane mode on and off.

What to do if your iPhone phone often has no signal Do this to make your mobile phone signal full in an instant.

At present, there is still a group of loyal fruit fans in China, and they have always been very fond of iphone and Apple mobile phones, but many users have reported that iphone mobile phones often have no signal, what should I do when I encounter this situation? How to solve the problem that the iPhone phone often has no signal? How to fix iPhone phone no signal?

1. Signal inquiry.

1.**Inquire.

There are many friends who feel that the reason why their iPhone mobile phone signal is not good, it is likely that the baseband used by the mobile phone is different, if you want to query the baseband used by your iPhone, you only need to query through a simple **.

2.Here's how.

In the dial pad of the iPhone, we enter [*3001*], and then click [Dialing], so that the phone will jump to a new page. If "Field Test" is displayed at the top of the page, it means that the phone is using Qualcomm baseband, and if "Main Menu" is displayed, it is using Intel baseband.

2. Signal rescue.

If you feel that your iPhone signal is really not good, we can also solve it through the following methods

1.Airplane mode.

When we are using the iPhone and feel that the mobile phone signal is not very good, we can use the [Airplane Mode] in the mobile phone to help us. Turn on [Airplane Mode] for a few seconds and then turn it off, so that the phone will help us search for the signal again.

2.Reset network settings.

When we feel that the iPhone mobile phone signal is not very good, we can also use the [Reset Network Settings] function in the mobile phone to help us. When we turn on and click to use this function, our mobile phone network settings will be restored to the default settings before the factory, which can also solve the problem of poor mobile phone signal to a certain extent.

3.Manually select the carrier.

Sometimes. Our mobile phone signal is not good and has a certain relationship with the operator, if this is the case, we can manually select our own operator in the [Settings] - [Cellular Network] of the iPhone mobile phone.

4.Update the system.

In addition to the above methods, we can also choose to update the system of the mobile phone to help us improve the signal problem of the mobile phone. In every system update, Apple will help us optimize some problems, if you have a bad mobile phone signal when using the iPhone, you can also try to update the system of the phone.

The signal of the Apple mobile phone is not good, it may be caused by this reason, and remember to buy a mobile phone again.

1. It may be that the mobile phone card is in arrears;

2. Degaussing of mobile phone card;

3. Caused by loose mobile phone card slots.

4. The current network signal is not good;

The above information is for reference only, Guangxi Telecom worry-free card, monthly rent is only five yuan, traffic ladder billing, the more you use, the cheaper, the more you can log in to the Guangxi Telecom online business hall for inquiries, customer service No. 127 for your answer.

The reason why the Apple key is not successful and the phone always has no signal is that it is sleepy:

The signal in your location does not work.

System issues. It's a receiver issue.

The solution to the problem that the Apple phone always has no signal is:

Try it in another place, or try it on another machine, if the other machine is full, your machine has no signal.

Factory reset the system and try again, if there is still no signal, then it is not a system problem, it is a hardware problem.

Replace the receiver – a small chip on the motherboard.

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

1. Mobile phone SIM card.

Poor contact with the shrapnel of the mobile phone card slot, resulting in the SIM card circuit can not work, and the mobile phone and the network base station can not communicate, at this time, you can remove the SIM card and wipe the SIM card gold finger with a cleaning cotton cloth.

, reinstall it.

2. The application software for the installation of the mobile phone is not compatible with the system, resulting in the system software turning off the modem in the mobile phone signal processing circuit.

At this time, you can turn off the phone and restart it, the modem in the mobile phone signal circuit will restart, and when 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 that there is no service as the reason for the SIM card.

4. If the SIM card of the mobile phone fails to reconnect to the search network after there is no signal in the network signal coverage area, you can manually search for the network front cover 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.

1. The operator's signal is poor.

2. Occasional problems with mobile phone signals.

3. There is a problem with the mobile phone.

There are many reasons why the mobile phone shows no service after inserting the mobile phone card, and the common ones are as follows:

1. If the mobile phone is in arrears, the operator will turn off the service function of the mobile phone after the arrears are boring, and the mobile phone will be displayed as having no service, in which case you need to pay off the arrears and recharge the new phone bill.

2. The mobile phone is set to airplane mode, in airplane mode, the mobile phone will show no service, in this case, the airplane mode of the mobile phone can be turned off.

3. The mobile phone does not support the mobile phone card of this operator, for example, the mobile phone only supports the card of telecommunications, and the mobile card is inserted, which means that the mobile phone will show no service, and the mobile phone card needs to be replaced.

Fourth, the location of the mobile phone does not have the operator's network signal, there are many remote or closed environments that cannot receive the operator's signal, in this case, you need to change the location and try again.

Fifth, the mobile phone failure, it may be the mobile phone system or mobile phone hardware failure, in this case, you need to go to the mobile phone repair point to test the mobile phone.

The solution to the iPhone no signal:

2. If it is a dual-SIM phone, please check whether the SIM card is activated: Settings - SIM Card Manager - Sim1 Sim2 - Click the SIM card icon - slide to open (the operation mode of different models of mobile phones may be slightly different).

3. If there is still no signal, it is recommended to turn off the SIM card and take out the SIM card, use the eraser to wipe the SIM card chip, and then reinstall the car.

4. If it is invalid, please try to change to another location to rule out whether it is caused by poor signal coverage at the location.

5. Try to change the network mode to 3G or 2G (do not select the auto-connection mode). Note: Some machines do not support changing the network mode.

6. Try to change other SIM cards.

The reasons why Apple phones often don't receive ** are as follows:

1. It is possible that the airplane mode was accidentally turned on, check whether the "airplane mode" is turned on on the phone. Turn off your phone's airplane mode.

2. Or the signal of the operator around the mobile phone is not covered, resulting in ** unable to get through, change to a place with a good signal to dial and try.

3. It may be caused by the failure of the mobile phone system, it is recommended to reflash the mobile phone system.

4. Or it may be caused by the SIM card on the mobile phone being broken, replace the SIM.

5. Or if the hardware of the mobile phone is faulty, you can only find the mobile phone repair to repair the rock to solve it.

The common causes and solutions for phone not receiving calls** are as follows:

1. Check whether the mobile phone is in arrears and shut down, and it is recommended to pay and recharge.

2. Check whether the phone is set up for call forwarding, turn on airplane mode, call restrictions, etc., and it is recommended to try again after canceling.

3. Check whether the function or signal of the mobile phone is normal, and it is recommended to try again after changing the mobile phone or location.

4. If it is not available for roaming to other places, it is recommended to check whether the local network signal is normal and whether the number has been opened for roaming permission.

5. Try to restart or change the phone to see if it can receive calls**.

6. Bring the mobile phone card to the local business hall for testing or replacement of the mobile phone card. <>