https://community.squareup.com/t5/Hardware-Setup-Troubleshooting/Error-messages/m-p/289367#M6053 <P>Hey <a href="https://community.squareup.com/t5/user/viewprofilepage/user-id/386867">@BMMW</a> and welcome to the Community,</P> <P>&nbsp;</P> <P>Sorry to hear you're having some trouble. A few things to check first:&nbsp;</P> <P>&nbsp;</P> <P>1) Is the OS&nbsp;(Operating System) up to date on your iPhone?</P> <P>2) Is the POS app up to date?</P> <P>3) Is your internet connection strong?</P> <P>&nbsp;</P> <P>Sometimes it also helps to delete and reinstall the app completely, as long as you don't have any pending Offline Mode payments.</P> <P>&nbsp;</P> <P>Make sure those things are all updated. If you're still running into problems,&nbsp;<A href="https://squ.re/contact" target="_blank">give our team a call</A>&nbsp;so they can go through some additional steps.</P> <P>&nbsp;</P> <P>For peace of mind too- that message doesn't mean anything is insecure. It just means the reader can't connect.</P> Sun, 25 Jul 2021 12:03:57 GMT ashc 2021-07-25T12:03:57Z https://community.squareup.com/t5/Hardware-Setup-Troubleshooting/Error-messages/m-p/289195#M6052 <P>I am receiving a "Reader Unavailable - Secure Session Denial" message.&nbsp; I can't find any information about this online and am concerned that I am exposing my client's credit card information.&nbsp; How can I fix this problem, please??</P> Sun, 21 Sep 2025 12:12:42 GMT https://community.squareup.com/t5/Hardware-Setup-Troubleshooting/Error-messages/m-p/289195#M6052 BMMW 2025-09-21T12:12:42Z https://community.squareup.com/t5/Hardware-Setup-Troubleshooting/Error-messages/m-p/289367#M6053 <P>Hey <a href="https://community.squareup.com/t5/user/viewprofilepage/user-id/386867">@BMMW</a> and welcome to the Community,</P> <P>&nbsp;</P> <P>Sorry to hear you're having some trouble. A few things to check first:&nbsp;</P> <P>&nbsp;</P> <P>1) Is the OS&nbsp;(Operating System) up to date on your iPhone?</P> <P>2) Is the POS app up to date?</P> <P>3) Is your internet connection strong?</P> <P>&nbsp;</P> <P>Sometimes it also helps to delete and reinstall the app completely, as long as you don't have any pending Offline Mode payments.</P> <P>&nbsp;</P> <P>Make sure those things are all updated. If you're still running into problems,&nbsp;<A href="https://squ.re/contact" target="_blank">give our team a call</A>&nbsp;so they can go through some additional steps.</P> <P>&nbsp;</P> <P>For peace of mind too- that message doesn't mean anything is insecure. It just means the reader can't connect.</P> Sun, 25 Jul 2021 12:03:57 GMT https://community.squareup.com/t5/Hardware-Setup-Troubleshooting/Error-messages/m-p/289367#M6053 ashc 2021-07-25T12:03:57Z