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1. Try to change the time period;
2. Check whether the volume of the call is too low or turned to mute, you can turn up the volume of the call to see;
Find the corresponding software - single permission setting - check whether the "recording" permission is turned on (some models are to enter the mobile phone i manager - application management software management - permission management - check whether the "recording" permission is turned on;
All) -- find the software for the web call -- store -- clear the data and cache of the software;
5. Check whether it is the latest system;
6. To confirm whether the microphone of the mobile phone is blocked, you can bring the mobile phone to the vivo customer service center for processing (customer service center address: enter the vivo official website vivo**app--service--my service--service outlets--select the province and city to query the customer service center address).
7. Uninstall and reinstall the software (it is recommended to back up the important data in the software before uninstalling to avoid loss).
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It may be that your phone's microphone is malfunctioning, and you can go to the after-sales service to overhaul it.
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It may be that the microphone is broken, or the resistance value of the surrounding area has changed, so the sound is small, in this case, the repair shop can change the microphone. It is also possible that the small hole of the microphone is blocked by dust.
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The mobile phone transmitter is not broken, the mobile phone can not be sent out, the mobile phone is changed a few times, there is no solution, there is no It is possible that the transmitter is broken, or the surrounding resistance value has changed, so the sound is small, in this case, the repair shop can change the transmitter. It is also possible that the small hole of the microphone is blocked by dust.
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It may be a network problem or a system problem with your phone, so it is recommended to check the network or restart your phone to update the system.
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Method. Second, the network signal problem, the location signal is not good, you need to change the position to try the method.
3. How to replace a SIM card.
Fourth, check the SIM card settings in the mobile phone settings.
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Unable to send a text message can be handled as follows:
Circumstance. 1. Some SMS messages cannot be sent.
1. Please confirm whether the phone card is sufficient, if the phone bill is insufficient, the sending of the New Year's text message will fail.
2. Please use the test statement to send a text message to confirm whether the other party can receive it normally, such as sending: hello, thank you, etc. If the other party can receive it normally, it means that the previously sent SMS may contain sensitive words.
3. After the fixed dialing is enabled, you can only send messages to the contacts in the fixed dialing list, and cannot send messages to other numbers. If you want to continue sending SMS, please cancel the fixed dialing service. Go to Settings - Application & Permissions - System Application Settings - ** - Corresponding SIM card.
Fixed dialing, turn off fixed dialing (the pin2 code that needs to be entered when turning it off needs to consult the operator).
Circumstance. 2. All text messages cannot be sent.
1. Please confirm whether the phone card is sufficient, if the phone bill is insufficient, the SMS will fail.
2. You can try to switch the airplane mode on and off.
Try after retriggering the network.
Permissions - Default App Settings - Info, set to Info.
4. Go to Settings - Application and Permissions - System Application Settings - Information - More Settings - SMS Center Number, if you don't know the local SMS Center number, please contact the operator to get the SMS Center number and set it.
Note: If you check other mobile phones with SIM cards from the same carrier, you can also check the local SMS center number.
5. It is recommended to put the SIM card on other mobile phones to send SMS tests. If the sending still fails, it is recommended to consult the carrier's customer service.
Reset all settings.
Note: Hechen only operates "Restore All Settings" will not delete any data or ** files, only restore all settings of the phone, some third-party application accounts need to be logged in again, please confirm that it does not affect the use of the software before operating. For the data security of the mobile phone.
It is recommended to back up your phone data in advance to prevent loss. (Access to cloud services.)
Cloud backup of the device.
Backup data type.
System Data - Return - Immediate Backup can back up part of the system settings and desktop layout; Cloud service - data synchronization - turn on WLAN, Bluetooth, etc. to synchronize data to cloud service).
The quality of vivo mobile phones is relatively good, and from the model point of view, you can't know the quality of the mobile phone, you can only know the difference in configuration.
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These methods can be used to solve the problem: 1. Restart the mobile phone; 2. Shut down for a period of time; 3. Open the phone settings to view the heating software and uninstall it; 4. Restore the phone to factory settings, and be sure to choose the official software when re-installing the application software; 5. Develop the habit of cleaning up garbage at any time.