What should be done when the error message “NO ACKNOWLEDGMENT FROM PIN” is received?

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What should be done when the error message “NO ACKNOWLEDGMENT FROM PIN” is received?

What should be done when the error message “NO ACKNOWLEDGMENT FROM PIN” is received?

First, check the PIN pad. Unplug the PIN pad cable from the back of the terminal and plug it back in. Then, push the cable in back of the PIN pad. Contact The Merchant Solutions for further support.