The mobile phone pos machine indicated that the detection failed, and Bluetooth could not be found, mostly due to the compatibility problem of the mobile phone:

1. First of all, it is necessary to determine whether the mobile phone has been swiped or escaped from prison, and whether it is a machine of China Bank.

2. If you haven't swiped your mobile phone, escaped from prison, and it's also a machine of China Bank, then go to the mobile phone pos website to consult customer service, or call the agent to ask if this model of machine supports mobile phone pos.

3. If you support it, try another mobile phone. If there is nothing wrong with the other party's mobile phone, it means it is a mobile phone problem.

4. If the other party's mobile phone doesn't work, consider the problem of mobile phone pos and contact the agent to pick it up.