thread Encryption unsuccessful in Hardware Setup & Troubleshooting https://community.squareup.com/t5/Hardware-Setup-Troubleshooting/Encryption-unsuccessful/m-p/626940#M3806 <P>Out of nowhere today on our terminal we had this message "Encryption unsuccessful"</P><P>only option was "ERASE ALL DATA" which didn't work either. After many attempts to do a factory reset that didn't work I called support.</P><P>My understanding is if you see this problem, you will have to replace your terminal.&nbsp;</P><P>&nbsp;</P><P>Big Shout Out to Square Support....new terminal on the way.</P><P>&nbsp;</P><P>We have a Contactless card reader as a back up, and a Square stand. Always keep a back up device ready and test it frequently.<span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="terminal.jpg" style="width: 749px;"><img src="https://community.squareup.com/t5/image/serverpage/image-id/35012i1F2B1B92A5F36F94/image-size/large?v=v2&amp;px=999" role="button" title="terminal.jpg" alt="terminal.jpg" /></span></P> Sun, 21 Sep 2025 10:17:38 GMT perkits 2025-09-21T10:17:38Z Encryption unsuccessful https://community.squareup.com/t5/Hardware-Setup-Troubleshooting/Encryption-unsuccessful/m-p/626940#M3806 <P>Out of nowhere today on our terminal we had this message "Encryption unsuccessful"</P><P>only option was "ERASE ALL DATA" which didn't work either. After many attempts to do a factory reset that didn't work I called support.</P><P>My understanding is if you see this problem, you will have to replace your terminal.&nbsp;</P><P>&nbsp;</P><P>Big Shout Out to Square Support....new terminal on the way.</P><P>&nbsp;</P><P>We have a Contactless card reader as a back up, and a Square stand. Always keep a back up device ready and test it frequently.<span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="terminal.jpg" style="width: 749px;"><img src="https://community.squareup.com/t5/image/serverpage/image-id/35012i1F2B1B92A5F36F94/image-size/large?v=v2&amp;px=999" role="button" title="terminal.jpg" alt="terminal.jpg" /></span></P> Sun, 21 Sep 2025 10:17:38 GMT https://community.squareup.com/t5/Hardware-Setup-Troubleshooting/Encryption-unsuccessful/m-p/626940#M3806 perkits 2025-09-21T10:17:38Z