Why can t Bluetooth connect, why can t Bluetooth connect?

Bluetooth cannot be connected and paired, it is possible that the device does not have Bluetooth connection mode turned on; It is also possible that the Bluetooth device has been connected to other mobile phones, and turning it on again causes it to automatically connect with other mobile phones; It is also possible that the version of Bluetooth on the phone is not compatible with other Bluetooth devices.

In order for your phone to connect to Bluetooth, you need to make sure that the Bluetooth device is in power-on mode. You can press and hold the power button to check the Bluetooth device indicator. Normally, when the indicator light flashes, the Bluetooth device is in a state waiting for the link.

If the Bluetooth version of the mobile phone is not compatible with the Bluetooth version of the device, you can contact the official after-sales service or customer service of the device merchant for return and exchange.

When connecting a Bluetooth device, first make sure that the Bluetooth switch of the mobile phone is turned on, and secondly, make sure that the Bluetooth device is on and within the effective range of the mobile phone or computer, otherwise the Bluetooth connection will fail.

Before buying a Bluetooth device, make sure that the Bluetooth version of your phone or computer is compatible with the Bluetooth version of the device, otherwise it will cause the Bluetooth device to be unusable.

If you are using a OnePlus phone.

If your phone cannot be paired with a Bluetooth device, we recommend that you perform the following troubleshooting:

Please make sure that the Bluetooth of the mobile phone is turned on and can be discovered;

Please make sure that the searched device is not connected to other Bluetooth devices of the same type, if so, please disconnect it before pairing and connecting. The searched device has been paired with another device, which may result in it not being searchable;

If you still can't connect to the paired Bluetooth device, try to connect the Bluetooth device with another phone or device to see if it succeeds, if not, please check the Bluetooth device;

If the problem persists, try to upgrade to the latest system software and test again.

If the problem still doesn't work, back up the data.

If none of the above methods can solve your problem, it is recommended that you contact OnePlus customer service or apply for after-sales service, and the branch engineer will check and deal with it for you.

Reasons why Bluetooth doesn't connect:

1. The Bluetooth setting is not in pairing mode. Solution: Turn off the Bluetooth earbuds, press and hold or push the key away and don't let go until the red and blue lights flash alternately, and then enter the pairing state.

3. Enter the Bluetooth settings interface to check whether the phone is visible to all devices. Workaround: Set up Barrier - Bluetooth - Select any device item to be visible.

4. The distance between the device and another Bluetooth device is too large. Workaround: Make sure the distance between the device and the other Bluetooth device is within the maximum Bluetooth range (10m).

5. Bluetooth devices are not compatible with different versions.

6. The pairing code entered is incorrect. Workaround: Enter the correct pairing code.

Expansion: 1. Bluetooth is a radio technology that supports short-distance communication between devices (generally within 10m), and can exchange wireless information between many devices including mobile**, PDA, wireless headsets, laptops, and related peripherals. The use of Bluetooth technology can effectively simplify the communication between mobile communication terminal equipment, and can also successfully simplify the communication between the device and the Internet, so that the data transmission becomes more rapid and efficient, and broadens the road for wireless communication.

2. As a small-range wireless connection technology, Bluetooth can realize convenient, fast, flexible and safe, low-cost, low-power data communication and voice communication between devices, so it is one of the mainstream technologies to realize wireless personal area network communication. Connecting to other networks can lead to a wider range of applications. It is a cutting-edge open wireless communication that can enable various digital devices to communicate wirelessly, and is a kind of wireless network transmission technology, which was originally used to replace infrared communication.

It could be that the headphones are out of battery or that the method is wrong.

1. The earphones must have sufficient power. When the Bluetooth headset is insufficient or out of power, it cannot be found.

2. The headset must be discoverable before it can be found. Generally, press and hold the power button of the earbuds for more than 7 seconds, and the prompt light will start to flash, indicating that the earbuds are currently in a discovered state before they can be found.

3. When pairing, the higher version of the Bluetooth headset is directly successful, and the lower version needs to enter the pairing code. Generally 0000 or 1234.

The reason why the mobile phone cannot connect to Bluetooth may be: the mobile phone CPU is too high, the mobile phone and Bluetooth do not match, and the Bluetooth does not enter the matching state.

1. The CPU occupation of the mobile phone is too high, and the solution is to restart the mobile phone.

2. Bluetooth and mobile phone do not match, the solution is to replace the device.

3. Bluetooth does not enter the matching state, the solution is to press and hold the power button for ten seconds to enter the matching state.

4. If there is a device problem, the solution is to clear the information of the paired device, find the device to be connected and connect it.

5. There are devices that interfere with Bluetooth around, the solution is to try another place in another place, if it is still unsuccessful, you can go into the stove to restore the factory setting operation, different devices restore the factory operation mode, you can refer to the trouble or consult customer service.

Mobile phone built-in Bluetooth uninstall retrieval method:

2. It is the built-in software of the system, find the Bluetooth apk and the Bluetooth file ODXD, which is the English letter of Bluetooth.

4. Note that the installation failure will generally be displayed, and then the Bluetooth apk will be deleted.

5. Then copy back the Bluetooth APK that has been extracted from the SD card, click Settings, and turn on the Bluetooth permission.

6.Click install again, then shut down and restart, and the Bluetooth can be restored. <>

The connection and bridging method of Bluetooth headset is generally as follows:

Press the power button in the shutdown state for more than 5 seconds until the red and blue lights flash alternately, then enter the Xiaohong pairing state, then turn on the Bluetooth of the mobile phone, search for the Bluetooth device, find the corresponding device name, and pair and connect.

You give it a try. Hope mine can help you.

If the Bluetooth does not connect to the Bluetooth headset, it may be that the pairing mode of the Bluetooth headset has a different opening method, or it may be due to the Bluetooth of your phone is not turned on visibility, or it may be that your Bluetooth device or the Bluetooth module of the mobile phone is faulty. If the Bluetooth connection is not available, the Bluetooth speaker may be too far away, or the hardware facilities are faulty.

Bluetooth can't connect to Bluetooth headset causes and solutions:

1. Under normal circumstances, when the Bluetooth headset enters the pairing state, you only need to press and hold the power button for about 10 seconds and don't let go, and the headset will change from off to on and then to pairing, which is manifested as the headphone indicator (always on). Then use your phone to search for Bluetooth settings, and you can find your headphones.

2. It may be due to the different opening methods of the pairing mode of your Bluetooth headset, you can check the manual of the Bluetooth headset product, and then try to connect with the mobile phone after opening the pairing mode according to the steps introduced above.

3. In addition to the reason for your Bluetooth headset, it may also be due to the fact that your mobile phone Bluetooth is not turned on visibility, generally in the Bluetooth settings, in addition to the switch and name, there are also visibility options, which can be searched and identified by other devices after it is turned on.

Reasons and solutions for Bluetooth connection: 1. The CPU occupation of the mobile phone is too high, and the solution is to restart the mobile phone; 2. Bluetooth and mobile phone do not match, the solution is to replace the device. 3. Bluetooth does not enter the matching state, the solution is to press and hold the power button for ten seconds to enter the matching state. 4. If there is a device problem, the solution is to clear the information of the paired device, find the device to be connected and connect it. 5. There are devices that interfere with Bluetooth around, the solution is to try another place separately, if it is still unsuccessful, you can restore the factory settings operation, different devices restore the factory operation in different ways, you can refer to the manual or consult customer service.