Mobile phone Bluetooth can't connect. What happened?

If you use a vivo mobile phone, you can refer to the following methods for troubleshooting: (If all Bluetooth devices cannot be connected, directly check steps 5, 6, 7 and 8).

1. Confirm the power supply and connection range of Bluetooth device.

Confirm that the Bluetooth device is fully charged, and the effective distance of Bluetooth connection is generally around 10 meter. If both devices are far away or there is an obstacle in the middle, you may not be able to search for Bluetooth devices.

2. Confirm the connection status of the Bluetooth device.

Make sure that no other mobile phone is connected to this Bluetooth device.

3. Pairing Bluetooth devices again

Please refer to the Bluetooth device manual to ensure that the device is in a pairable state and re-pair the device.

* Note:

1) vivo tws1/vivo twsneo/vivo tws2/vivo tw2e pairing method: put two earphones in the charging box, open the cover, and press the function key of the charging box for 2 seconds until the indicator light flashes white, and the mobile phone searches for pairing by Bluetooth. Or press and hold the charging box function key 15 seconds, the indicator light will be orange and flash quickly, and the earphone will be restored to the factory setting and re-enter the pairing state.

Pairing method of vivo WATCH: (First pairing) Scan the QR code of the watch screen through the mobile phone, download and install the "Sports Health" App, open the software, register and log in to the Vivo account, click the device page, add devices, and pair vivoWatch. Sports Health App is a necessary application for connecting and managing watches. Vivo mobile phone users go to the App store to download and install the app, and Apple mobile phone users go to the App Store to search, download and install the app. (After pairing) press the button on vivo Watch-Settings-System Menu-to restore pairing, and search for connection through Sports Health App, or press the button on vivo Watch-Settings-System Menu-to restore the factory, and then search for connection through Sports Health App.

3) For other brands and models of Bluetooth devices, you can check the corresponding product manuals to understand the pairing method. ?

4. Conduct a comparative test.

Search by using two mobile phones without matching records at the same time. If other mobile phones can't find the device, it may be a Bluetooth device failure.

5. Upgrade the system version

Please enter the Settings-System Upgrade page (some models need to enter Settings-My Device-iQOO? UI version /Funtouch? OS version), upgrade the phone to the latest version to view.

6. Clear Bluetooth program data

Please back up the data, go to Settings-Applications and Permissions-Application Management-Three points in the upper right corner-Display system program-Bluetooth-Store-Clear data, and then connect the test.

7. Reset network settings

Backing up data and resetting network settings will delete the connection records of WLAN, mobile data network, Bluetooth and other networks. You can enter Settings-System Management-Backup and Reset-Reset Network Settings-Reset Settings-Follow the prompts (you need to select the corresponding SIM card for dual cards).

note:

1, enter the cloud service-data synchronization-turn on WLAN, Bluetooth, etc. Synchronize data to the cloud service.

2. Enter "Cloud Service"-Device Cloud Backup-Backup Data Type-Open "System Data"-Return to the previous page-Back up immediately and back up some system setting data.

8, service center testing

If the above methods fail to solve the problem, please back up the mobile phone data in advance and take the mobile phone and purchase certificate to vivo customer service center for testing. Go to official website /vivo Mall APP-My-outlet to inquire or click the link on this webpage, and select the current city to get the address and contact information of the service center.

Tips: In order to save time, it is recommended to contact the customer service center staff by phone before going, to avoid running empty, to plan the trip reasonably and to travel safely.