Lenovo phone A789 dialing invalid what s going on

We apologize for the inconvenience caused. Mobile phone dialing is invalid, unable to make an outgoing call** may have the following situations:

2. Please check whether the fuselage has relevant restrictions on the call function, such as setting the black and white list, it is recommended to cancel all of them before trying to observe;

3. It is recommended that you replace other mobile phones or compare the use of other users of the same operator in the vicinity, it is not excluded that it is caused by the poor network environment, if it appears in individual areas, it is recommended to change the network environment;

4. If you have the conditions to replace other SIM cards, it is recommended that you change the SIM card for comparison and use, if the individual SIM card cannot call in and out normally, it is not ruled out that it is a card failure or compatibility problem, it is recommended to contact the operator for specific testing and treatment;

5. If the above operations cannot be improved, it is recommended to back up the fuselage data and try to restore factory settings;

If the problem cannot be effectively solved after the above operation, for your normal use in the future, it is recommended that you take the time to go to a nearby Lenovo authorized repair station for specific testing and treatment.

Lenovo authorized repair site inquiry.

The business hours of the maintenance site are usually from Monday to Sunday from 9:00 to 18:00, except for holidays, and the stations will be slightly adjusted according to their own operations.

Sorry for the inconvenience! If your phone can't make outgoing and incoming calls. It is recommended that you verify:

1. Please check whether there is any arrears, if the balance is insufficient, please make up the arrears to the operator and try; Reseat the SIM card and try to reboot;

2. It is recommended that you replace other mobile phones or compare the use of other users of the same operator in the vicinity, it is not excluded that it is caused by the poor network environment.

3. If you have the conditions to replace other SIM cards, it is recommended that you change the SIM card for comparison and use, if the individual SIM card cannot call in and out normally, it is not ruled out that it is a card failure or compatibility problem, it is recommended to contact the operator for specific testing and treatment;

4. If the above operations cannot be improved, it is recommended to back up the fuselage data and try to restore the factory settings;

If the problem cannot be effectively solved after the above operation, for your normal use in the future, it is recommended that you take the time to go to a nearby Lenovo authorized maintenance belt repair station for specific testing and processing.

Officially authorized repair site inquiry.

The business hours of the maintenance site are usually from 9:00 to 18:00 from Monday to Sunday, and the stations will be slightly adjusted according to their own operations.

It is recommended that you first compare with the person next to the person who touches the emperor to see how the signal of friends who use the SIM card of the same operator, and see if it is caused by the operator's signal coverage and strength being too weak. If other people's signals are good, but yours is not good, then back up the phone's data and restore it to factory settings to see if it is caused by system abnormalities. If it still doesn't work after recovery, go to the repair station to check it, and visually check that it is a hardware failure.

When the Lenovo after-sales maintenance station of the laughing potato field is tested and repaired.

Service site inquiry:

a.There is no signal or service under all environmental conditions

1.Change to other SIM cards to try, if it can be recognized normally after replacement, it is recommended to contact the operator for processing;

2.If the SIM card is still in no signal and service state, it is recommended to send it to the repair station for processing;

b.Intermittent occurrence:

1.Whether the surrounding network environment is normal at that time, it is recommended to compare with other areas, or to compare with nearby users.

2.It is recommended to change the SIM card for comparison, if the individual SIM card appears, it is recommended to contact the operator for further processing;

3.If it appears recently, you can prepare this fuselage data to try to restore factory settings;

4.If the above operations cannot be improved, it is recommended that the repair site be sent for testing and processing.

Isn't the area not so good. The network is not covered.

Lenovo A789 won't turn on, there are two situations:

1. If the phone clicks the power button and does not respond and does not turn on, you can use the following steps to make a simple troubleshooting attempt:

1.Caused by poor or abnormal battery contact: It is recommended to reinsert and remove the battery for a restart attempt, if there are other batteries, it is recommended to replace and compare;

2.It is recommended to use the standard charger to charge for about 30 minutes, and then press and hold the power button again.

2. If the fixed screen of the mobile phone cannot be turned on normally to enter the system when it is turned on, you can use the following steps to make a simple troubleshooting attempt:

1.It is recommended to remove the back cover and battery, and try to restart, if it can enter normally, it is recommended to back up the body data for a factory reset attempt (ps: remember to back up the data before operation to avoid personal data loss);

2.If the above operations cannot be improved, it may be caused by abnormal system files or data loss on the device motherboard, and you need to flash and check the device. Due to the risk of flashing the machine and may lead to non-insurance, it is recommended to take the time to go to the maintenance station to be assisted by an engineer to test and deal with it.

There is a contact person who is**Ben After entering, there is an icon of information and ** behind each contact Point Ambush** is to broadcast the scattered forest with a little information is to write a message Spring Oak.

Lenovo A789 mobile phone has its own dialing and contact application (as shown below),Enter the number directly by clicking on the dialing icon and click**icon to dial**,Or by clicking on the contact icon,Directly click on a contact,Select the **icon on the right side of Sun Gao's contact Liang Bi to call,Please understand。

If the above operation still cannot be achieved or the device can not find these two program icons, it is recommended that you restart the operation, if it cannot be improved, please back up the fuselage data in time to try to restore factory settings (system settings - backup and reset - factory reset), if the problem still exists after restoration, it is recommended that you go to the local maintenance site for testing and processing.

Lenovo authorized after-sales site inquiry:

I hope the above reply is helpful to you and I wish you a happy life!

Go to the after-sales service and take a look! Or go flash!

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

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

2 Check whether the phone is set to call forwarding, turn on airplane mode, call restrictions, etc., it is recommended to cancel and try again;

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

4. If you cannot use it when roaming to other places, it is recommended to check whether the local network signal is normal and whether the number has been activated for roaming permission;

5 Try to restart or change your phone to see if you can make calls**;

6. Bring the mobile phone card to the local business office for testing or replacement of the mobile phone card.

How to deal with the phone can't receive calls normally:

1. Check the status of the mobile phone to see if it is down;

2. If there is a signal that cannot be answered normally**, it is recommended to check whether to set up call forwarding or airplane mode;

3. If there is no signal, you can first ask the surrounding people whether there is also this situation, if there is also this situation, it may be that the network signal in your location is abnormal, it is recommended to call 10086 "manual" customer service feedback problem;

If there is no such situation in the surrounding people, it is recommended to change the mobile phone to test, if the mobile phone can be used normally, it is a problem with the mobile phone, it is recommended to check the mobile phone settings;

If you can't use your phone normally, it is recommended to go to the business hall to change your card.