Viva.com

If your card terminal stops working abruptly when it disconnects from the power, you should: 

Reinstall the card terminal’s <b>battery</b> 

Confirm that the plastic membrane on the battery has been removed. 

1. Reinstall the card terminal’s <b>battery</b> 
2. Confirm that the plastic membrane on the battery has been removed. 

When I disconnect the wireless card terminal from the power, turns off. What should I do?

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