What should I do if the anti theft device in the supermarket cannot be unlocked?

The reason why the supermarket anti theft device cannot be unlocked and the investigation:

1. The power is not turned on, the device is not turned on, and the plug is not inserted properly.
2. The power light of the decoder of the supermarket anti-theft device is on but the decoder board does not decode: if this phenomenon occurs, the connection between the decoder under the cashier and the decoder board is artificially disconnected. At this time, you need to ask an electrician to turn off the power and reconnect .

Supermarket anti-theft devices are electronic products that require relatively high sensitivity. We also need to choose products with reliable quality when purchasing, and at the same time, we can also do maintenance work in the process of daily use, so that the failure of supermarket anti-theft devices will be much less.