What's with the unstable cell phone signal?

You can refer to the following troubleshooting methods for vivo mobile phones:

1. Confirm whether to use third-party magnetic attraction or metal fittings: metal and magnetic materials can easily interfere with signal reception, so it is recommended to remove the fittings for inspection;

2. Confirm whether the current environment covers the operator network: if it is in a closed indoor environment (such as basement, elevator, etc.). ), the cell phone signal may be blocked, resulting in poor signal, you can go to the outdoor environment to check. If you are in a remote area and the signal may be poor, you can use the cell phone signal of the same operator network around you to determine whether it is the cause of network coverage.

3. Check the SIM card and verify the cross-card replacement: observe whether there is dirt or oxidation on the metal surface of the SIM card, and check it after cleaning. If you use a tailored SIM card, it is recommended to replace it with a standard SIM card. Install the SIM card to other equipment, or install other SIM cards to this machine for comparative test to determine whether the SIM card is faulty. If it is due to the SIM card, it is recommended to reissue the card in the operator's business hall.

4. Reset the network settings: Go to Settings-System Management-Backup and Reset-Reset the network settings-Select the corresponding SIM card-Reset the settings, and then use it to view it.

* Note: Resetting the network settings will reset the WLAN, mobile data network and Bluetooth connection records.

5. Service center detection: If the above methods fail to solve the problem, you can back up your mobile phone data in advance, take your mobile phone and purchase voucher to the vivo customer service center for detection, enter the browser to search for official website-Service-Service Center-View All-select provinces and cities to inquire about the address and contact information of the local service center.