diff --git a/README.md b/README.md
index 0b4b29f..80f450d 100644
--- a/README.md
+++ b/README.md
@@ -86,7 +86,7 @@ All print files (STL, STEP, X_T) can be found in [assets/case](/assets/case/). A
 
 ## ⚙️ Default config
 
-To reset the settings, hold down the button and connect the ESP to the power supply. As soon as the LED flashes quickly, the settings are reset.
+To reset the settings, hold down the button and connect the ESP to the power supply, the LED will flash quickly. After 3 seconds the LED should light up static and the settings are reset. If you release the button early you abort the reset and the LED flashes slowly.
 
 | Setting        | Value              |
 | -------------- | ------------------ |
diff --git a/src/main.cpp b/src/main.cpp
index 6a15209..9dccc71 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -100,21 +100,29 @@ void setup()
 
     // LED
     analogWrite(PIN_LED, brightness_led);
-    // delay(5000);
-    ledBlink(500);
 
     // Button
     pinMode(PIN_BUTTON, INPUT_PULLUP);
     if (digitalRead(PIN_BUTTON) == LOW)
     {
         ledBlink(100);
-        delay(2000);
-        Serial.println("Reset config");
-        config.begin("dmx", false);
-        config.clear();
-        config.end();
+        unsigned long startTime = millis();
+        while (digitalRead(PIN_BUTTON) == LOW && (millis() - startTime <= 3000))
+        {
+        }
+        if (digitalRead(PIN_BUTTON) == LOW)
+        {
+            ledBlink(1);
+            Serial.println("Reset config");
+            config.begin("dmx", false);
+            config.clear();
+            config.end();
+            delay(2000);
+        }
     }
 
+    ledBlink(500);
+
     // wait for serial monitor
     delay(5000);
     Serial.println("Starting DMX-Interface...");