Interesting campus equipment information is inconsistent.

Mobile phone equipment problems. It is recommended to clear the information of paired devices, then scan the devices and find the devices to be connected before connecting. In the meantime, there will be verification. Just follow the prompts.

There is a problem with the Bluetooth device to be connected to the mobile phone. For Bluetooth devices such as Bluetooth headsets, it is recommended to check whether the battery is sufficient and try again after restarting. If it is still unsuccessful, you can restore the factory settings. Different equipment has different ways to return to the factory. Please refer to the instruction manual or consult customer service.

There is interference from Bluetooth devices around, so it is recommended to try somewhere else.