Legacy Pairing using OOB NFChttps://devzone.nordicsemi.com/f/nordic-q-a/124637/legacy-pairing-using-oob-nfcHi everyone, I am facing an issue when modifying the peripheral_nfc_pairing example. Due to hardware limitations, my device cannot integrate an NFC antenna. Instead, I plan to use an external NFC tag attached to the device. When a phone (Central)en-USTelligent Community 13Wed, 01 Oct 2025 06:44:52 GMTRE: Legacy Pairing using OOB NFChttps://devzone.nordicsemi.com/thread/550288?ContentTypeID=1Wed, 01 Oct 2025 06:44:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:78a02904-4055-4f24-8fc1-c0fb390e85faVidar Berg<p>Support for NFC pairing can vary between different models even if the run the same Android version. That said, I&#39;m not sure why SC OOB pairing seemingly works but not legacy OOB doesn&#39;t. Maybe the phone supports one but not the other.&nbsp; One of the differences between SC OOB and legacy oob pairing is that for legacy pairing the initiator (phone in this case) must set the OOB flag for OOB data to be used (Ref. <a href="https://www.bluetooth.com/wp-content/uploads/Files/Specification/HTML/Core-54/out/en/host/security-manager-specification.html#UUID-65a136a2-df70-4176-6125-7657b7e89301">2.3.5.1. Selecting key generation method</a>).</p><div style="clear:both;"></div>RE: Legacy Pairing using OOB NFChttps://devzone.nordicsemi.com/thread/550082?ContentTypeID=1Tue, 30 Sep 2025 05:44:09 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cbe20843-513d-4d25-b502-b1d1e8e75a82nguyen.thnhkhoi<p>Yes, it worked before I made these changes (My phone is&nbsp;running Android 13, it does support Bluetooth 5.1). Before modifying the example, it completely established the LESC Level 4.</p> <p>Thank you for your attention.</p> <div id="WidgetFloaterPanels" class="LTRStyle" style="direction:ltr;display:none;text-align:left;"> <div id="WidgetFloater" style="display:none;"> <div id="WidgetLogoPanel"><span id="WidgetTranslateWithSpan"><span>TRANSLATE with </span></span> <span id="WidgetCloseButton" title="Exit Translation">x</span></div> <div id="LanguageMenuPanel"> <div class="DDStyle_outer"><span id="__LanguageMenu_header" class="DDStyle">English</span> <div style="left:0;position:relative;text-align:left;"> <div style="position:absolute;"> <div id="__LanguageMenu_popup" class="DDStyle" style="display:none;"> <table id="LanguageMenu" border="0"> <tbody> <tr> <td><a href="#ar">Arabic</a></td> <td><a href="#he">Hebrew</a></td> <td><a href="#pl">Polish</a></td> </tr> <tr> <td><a href="#bg">Bulgarian</a></td> <td><a href="#hi">Hindi</a></td> <td><a href="#pt">Portuguese</a></td> </tr> <tr> <td><a href="#ca">Catalan</a></td> <td><a href="#mww">Hmong Daw</a></td> <td><a href="#ro">Romanian</a></td> </tr> <tr> <td><a href="#zh-CHS">Chinese Simplified</a></td> <td><a href="#hu">Hungarian</a></td> <td><a href="#ru">Russian</a></td> </tr> <tr> <td><a href="#zh-CHT">Chinese Traditional</a></td> <td><a href="#id">Indonesian</a></td> <td><a href="#sk">Slovak</a></td> </tr> <tr> <td><a href="#cs">Czech</a></td> <td><a href="#it">Italian</a></td> <td><a href="#sl">Slovenian</a></td> </tr> <tr> <td><a href="#da">Danish</a></td> <td><a href="#ja">Japanese</a></td> <td><a href="#es">Spanish</a></td> </tr> <tr> <td><a href="#nl">Dutch</a></td> <td><a href="#tlh">Klingon</a></td> <td><a href="#sv">Swedish</a></td> </tr> <tr> <td><a href="#en">English</a></td> <td><a href="#ko">Korean</a></td> <td><a href="#th">Thai</a></td> </tr> <tr> <td><a href="#et">Estonian</a></td> <td><a href="#lv">Latvian</a></td> <td><a href="#tr">Turkish</a></td> </tr> <tr> <td><a href="#fi">Finnish</a></td> <td><a href="#lt">Lithuanian</a></td> <td><a href="#uk">Ukrainian</a></td> </tr> <tr> <td><a href="#fr">French</a></td> <td><a href="#ms">Malay</a></td> <td><a href="#ur">Urdu</a></td> </tr> <tr> <td><a href="#de">German</a></td> <td><a href="#mt">Maltese</a></td> <td><a href="#vi">Vietnamese</a></td> </tr> <tr> <td><a href="#el">Greek</a></td> <td><a href="#no">Norwegian</a></td> <td><a href="#cy">Welsh</a></td> </tr> <tr> <td><a href="#ht">Haitian Creole</a></td> <td><a href="#fa">Persian</a></td> <td></td> </tr> </tbody> </table> </div> </div> </div> </div> </div> <div id="CTFLinksPanel"><span id="ExternalLinksPanel"><a id="HelpLink" title="Help" href="https://go.microsoft.com/?linkid=9722454" rel="noopener noreferrer" target="_blank"> </a> <a id="EmbedLink" title="Get this widget for your own site"></a> <a id="ShareLink" title="Share translated page with friends"></a> </span></div> <div id="FloaterProgressBar"><span id="ProgressFill"></span></div> </div> <div id="WidgetFloaterCollapsed" style="display:none;"><span>TRANSLATE with </span></div> <div id="FloaterSharePanel" style="display:none;"> <div id="ShareTextDiv"><span id="ShareTextSpan"> COPY THE URL BELOW </span></div> <div id="ShareTextboxDiv"><!--mce:protected %3C%21--a%20id%3D%22TwitterLink%22%20title%3D%22Share%20on%20Twitter%22%3E%20%3Cimg%20id%3D%22TwitterImg%22%20/%3E%3C/a%3E%20%3Ca--%20id%3D%22FacebookLink%22%20title%3D%22Share%20on%20Facebook%22%3E%20%3Cimg%20id%3D%22FacebookImg%22%20/%3E%3C/a--%3E--> <a id="EmailLink" title="Email this translation"></a> </div> <div id="ShareFooter"><span id="ShareHelpSpan"><a id="ShareHelpLink"></a> </span> <span id="ShareBackSpan"><a id="ShareBack" title="Back To Translation"></a> Back</span></div> </div> <div id="FloaterEmbed" style="display:none;"> <div id="EmbedTextDiv"><span id="EmbedTextSpan">EMBED THE SNIPPET BELOW IN YOUR SITE</span> <a id="EmbedHelpLink" title="Copy this code and place it into your HTML."></a> </div> <div id="EmbedTextboxDiv"></div> <div id="EmbedNoticeDiv"><span id="EmbedNoticeSpan">Enable collaborative features and customize widget: <a href="http://www.bing.com/widget/translator" rel="noopener noreferrer" target="_blank">Bing Webmaster Portal</a></span></div> <div id="EmbedFooterDiv"><span id="EmbedBackSpan">Back</span></div> </div> </div> <ul id="iw-contextMenu43" class="iw-contextMenu iw-created iw-cm-menu iw-curMenu" style="display:none;"> <li class="iw-has-submenu iw-mTrigger iw-mSelected" title="">Add to Phrasebook <div class="iw-cm-arrow-right"></div> <ul id="iw-contextMenu4705" class="iw-contextMenu iw-created iw-cm-menu" style="display:none;left:-611px;top:48px;"> <li class="iw-mDisable" title="">No word lists for English &rarr; 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