diff --git a/wled00/data/common.js b/wled00/data/common.js
index 658346e75..5a98b4fe1 100644
--- a/wled00/data/common.js
+++ b/wled00/data/common.js
@@ -13,7 +13,7 @@ function isN(n)     { return !isNaN(parseFloat(n)) && isFinite(n); } // isNumber
 // https://stackoverflow.com/questions/3885817/how-do-i-check-that-a-number-is-float-or-integer
 function isF(n)     { return n === +n && n !== (n|0); } // isFloat
 function isI(n)     { return n === +n && n === (n|0); } // isInteger
-function toggle(el) { gId(el).classList.toggle("hide"); gId('No'+el).classList.toggle("hide"); }
+function toggle(el) { gId(el).classList.toggle("hide"); let n = gId('No'+el); if (n) n.classList.toggle("hide"); }
 function tooltip(cont=null) {
 	d.querySelectorAll((cont?cont+" ":"")+"[title]").forEach((element)=>{
 		element.addEventListener("pointerover", ()=>{
diff --git a/wled00/data/settings_sec.htm b/wled00/data/settings_sec.htm
index 7f4627049..7a92c27b3 100644
--- a/wled00/data/settings_sec.htm
+++ b/wled00/data/settings_sec.htm
@@ -53,13 +53,13 @@
 		Factory reset: <input type="checkbox" name="RS"><br>
 		All settings and presets will be erased.<br><br>
 		<div class="warn">&#9888; Unencrypted transmission. An attacker on the same network can intercept form data!</div>
-		<hr>
+		<span id="OTA"><hr>
 		<h3>Software Update</h3>
 		<button type="button" onclick="U()">Manual OTA Update</button><br>
 		<div id="aOTA">Enable ArduinoOTA: <input type="checkbox" name="AO"></div>
 		Only allow update from same network/WiFi: <input type="checkbox" name="SU"><br>
 		<i class="warn">&#9888; If you are using multiple VLANs (i.e. IoT or guest network) either set PIN or disable this option.<br>
-			Disabling this option will make your device less secure.</i><br>
+			Disabling this option will make your device less secure.</i><br></span>
 		<hr id="backup">
 		<h3>Backup & Restore</h3>
 		<div class="warn">&#9888; Restoring presets/configuration will OVERWRITE your current presets/configuration.<br>
diff --git a/wled00/wled_server.cpp b/wled00/wled_server.cpp
index 5fb36e577..f12b00ab2 100644
--- a/wled00/wled_server.cpp
+++ b/wled00/wled_server.cpp
@@ -454,16 +454,12 @@ void initServer()
     serveMessage(request, 501, FPSTR(s_notimplemented), F("This build does not support OTA update."), 254);
   };
   server.on(_update, HTTP_GET, notSupported);
-  server.on(_update, HTTP_POST, notSupported);
+  server.on(_update, HTTP_POST, notSupported, [](AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool isFinal){});
 #endif
 
 #ifdef WLED_ENABLE_DMX
   server.on(F("/dmxmap"), HTTP_GET, [](AsyncWebServerRequest *request){
-    request->send_P(200, FPSTR(CONTENT_TYPE_HTML), PAGE_dmxmap     , dmxProcessor);
-  });
-#else
-  server.on(F("/dmxmap"), HTTP_GET, [](AsyncWebServerRequest *request){
-    serveMessage(request, 501, FPSTR(s_notimplemented), F("DMX support is not enabled in this build."), 254);
+    request->send_P(200, FPSTR(CONTENT_TYPE_HTML), PAGE_dmxmap, dmxProcessor);
   });
 #endif
 
diff --git a/wled00/xml.cpp b/wled00/xml.cpp
index 934bcc60b..9a9a0be79 100644
--- a/wled00/xml.cpp
+++ b/wled00/xml.cpp
@@ -596,8 +596,11 @@ void getSettingsJS(byte subPage, Print& settingsScript)
     snprintf_P(tmp_buf,sizeof(tmp_buf),PSTR("WLED %s (build %d)"),versionString,VERSION);
     printSetClassElementHTML(settingsScript,PSTR("sip"),0,tmp_buf);
     settingsScript.printf_P(PSTR("sd=\"%s\";"), serverDescription);
-    #ifndef WLED_ENABLE_AOTA
     //hide settings if not compiled
+    #ifdef WLED_DISABLE_OTA
+    settingsScript.print(F("toggle('OTA');"));  // hide update section
+    #endif
+    #ifndef WLED_ENABLE_AOTA
     settingsScript.print(F("toggle('aOTA');"));  // hide ArduinoOTA checkbox
     #endif
   }