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It is recommended to use the mobile phone in a place with good mobile phone signal coverage, and if there is no signal problem, you can wipe the SIM card chip with a soft cloth or replace the SIM card.
The phone shows emergency calls only.
No service. And no signal solution tutorial MTK,This tutorial is limited to MTK type mobile phones,The mobile phone shows no service or displays "emergency call",There is a difference between these two situations,If there is no service,It means that there is no signal,Write the information first。
After reinstalling the CPU, a small part of the CPU or intermediate frequency is damaged, in this case, there is no need to check the antenna loop (antenna switch, filter, etc.), because they are dual-band or even tri-band mobile phones, if the antenna loop (antenna switch, filter, etc.) is faulty, there will be at least one, two bars of signal and will not show no service, if it is an "emergency call", 1, do not install the card can play 112, focus on checking the antenna loop (antenna switch, filter, etc.), generally can be shorted filter or replaced with capacitors, 2, can not play 112, there is a problem with the transmitter, replace the amplifier, reinstall the CPU, and a few are damaged in the mid-frequency.
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This method is actually very simple, and it is too convenient for little white people. The way to do this is to fully charge it and then do a factory reset. Factory reset OK.
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The mobile phone displays an emergency call, which generally means that there is no signal or the word emergency call will be displayed when the mobile phone is in arrears. This emergency call can't be removed, and every mobile phone comes with its own features.
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If you need to remove some related emergency calls, then you can find the relevant ** in the settings, and you can delete the corresponding emergency calls, and you can grind out some related characters.
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The emergency call function of Huawei mobile phones is a function to protect personal security, and it cannot be canceled as a built-in function of the system.
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2. At this time, open the interface of the settings and click on the "Wireless & Network" option.
3. In the interface that opens, click on the "Mobile Network" option.
4. In the interface of the mobile network, find the "Enable 4G" option, and then see that the slider behind it is turned on.
5. Turn off the slider behind enabling 4G for a while.
6. Wait for a while, and then enable the slider behind the 4G Hello, if the above methods do not work, it means that the mobile phone card has been damaged, it is recommended that you can bring valid documents to the business hall to handle the card replacement business.
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Hello, I'm glad to answer for you, please later, I'm working hard to sort out the answer for you, and I'll reply to you within 5 minutes.
If your phone's status bar says Emergency Calls Only, we recommend the following methods to try to resolve it: 1Whether you use a magnetic case, metal case, magnetic bracket or magnetic chuck If your phone uses a metal case, magnetic case, magnetic bracket or magnetic chuck, it is recommended to remove it and try it, as metal and magnetic materials can easily interfere with the signal and cause the mobile phone signal to deteriorate.
2) The degree of network coverage of operators varies according to different regions, and urban areas basically meet the coverage, but some remote areas may have insufficient coverage capacity, which will lead to poor mobile phone signal. You can determine whether it is caused by network coverage problems by whether the mobile phone signal is poor when you are only in the same area or the mobile phone signal status of nearby friends using the same carrier** card.
3) Open the three dots in the top right corner and tap Reset to default.
2) It is recommended to change to another SIM card of the same carrier, or change the SIM card to another mobile phone that supports this card before viewing. If the signal icons are all displayed as no signal, it is recommended to go to the operator's office to check and replace the SIM card with a new one.
If the problem persists, we recommend going to Settings, searching for Restore Network Settings, and clicking Reset Network Settings. This operation will delete Wi-Fi and Bluetooth related records, so please operate with caution.
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1.Avoid using magnetic metal cases, magnetic stands, or magnetic chucks.
If your phone uses a metal case, magnetic case, magnetic bracket or magnetic chuck, it is recommended that you remove it and try it, as metal and magnetic materials can easily interfere with the signal and cause no signal on your phone.
2.Please confirm whether the SIM card is disabled.
Please search for and go to SIM card management in Settings, and make sure that the SIM card switch is turned on. Disabled SIM card will cause the signal bar to show no signal (when a single SIM is inserted) or only one card signal (when dual SIM is inserted).
3.Please troubleshoot the SIM card.
It is recommended that you install the SIM card of the same operator into your mobile phone to check, if the signal display is normal, it may be that there is a problem with your mobile phone card, it is recommended that you go to the operator's business office to replace the new mobile phone card.
If your mobile phone card is a manually cut card, it may affect the reading of the signal due to non-standard shape and poor contact, so it is recommended that you bring your personal ID card to the operator's business office to apply for a standard mobile phone card.
Dirty or oxidized SIM cards will also affect the reading of the signal, so it is recommended that you keep the SIM card clean.
4.Please rule out network causes.
1. Try changing your current location.
In some more enclosed indoor environments, such as houses with dense spacing between buildings, the cell phone signal may be blocked, resulting in no signal.
The degree of network coverage of carriers varies according to different regions, and some areas may have insufficient coverage capacity, resulting in no mobile phone signal.
If your mobile phone has no signal in a specific area, or if a nearby friend's mobile phone with the same carrier** card also has no signal, it may be caused by poor network quality in your location, and it can be restored to normal after changing to another place.
2) Please try resetting the APN
Open Settings, enter APN in the search bar at the top, tap Access Point Name (APN) to jump to the mobile data settings interface, tap Access Point Name (APN) again, then tap the three dots in the upper right corner, and select Reset to Default Settings to try.
3) Please try to reset the network settings.
4) Please restart your phone or switch on airplane mode to try.
5.Please try after updating your phone system to the latest version.
It is recommended that you back up your data in advance (third-party communication apps need to be backed up separately) and update the system version of your mobile phone in time.
If the above troubleshooting does not resolve your issue, we recommend that you contact Huawei Consumer Service** (950800) for further assistance, or back up your data in advance (third-party communication apps must be backed up separately), bring your purchase credentials, and go to a Huawei Customer Service Center near you.
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This cannot be removed, which means that the phone is locked and needs to be unlocked with a passcode.
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The "Emergency Call" function cannot be turned off on Huawei phones. You can also increase your chances of getting out of danger by setting the following settings to make Emergency Call more useful:
1. Press the power button once, light up the screen, and then tap the "Emergency Call" option.
2. Then click on the "Personal Emergency Information" option in the middle of the pop-up page.
3. Click the "Add" option at the bottom of the "Personal Emergency Information" page.
4. Fill in the relevant information of the closest friends or relatives around you, so that it is very convenient.
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Mobile: Huawei Honor 9
Steps: 1. When the Huawei phone is logged out without logging in, press the power button on the right. Once you are on the Enter Password interface, select the Emergency Call option.
2. In the interface that appears, select the Personal Emergency Information option.
3. In the personal emergency information interface, select the Add option.
4. In the emergency information window, select the Add Contact option.
5. In the Select Contacts window, select the emergency contact you want to set.
6. In the emergency contact option, add the emergency contact information set for the bridge roll. Now even if the phone is not logged in, you can turn on ** to emergency contacts.
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