diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/qhybrid/QHybridSupport.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/qhybrid/QHybridSupport.java
index 13c6c2a18..3e59bd202 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/qhybrid/QHybridSupport.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/qhybrid/QHybridSupport.java
@@ -365,6 +365,9 @@ public class QHybridSupport extends QHybridBaseSupport {
             case "00002a26-0000-1000-8000-00805f9b34fb": {
                 String firmwareVersion = characteristic.getStringValue(0);
                 gbDevice.setFirmwareVersion(firmwareVersion);
+
+                checkFirmwareVersion(firmwareVersion);
+
                 break;
             }
             case "00002a19-0000-1000-8000-00805f9b34fb": {
@@ -384,6 +387,19 @@ public class QHybridSupport extends QHybridBaseSupport {
         return true;
     }
 
+    private void checkFirmwareVersion(String firmwareVersion){
+        if(!isFirmwareCompatible(firmwareVersion)){
+            GB.toast("Firmware " + firmwareVersion + " not compatible", Toast.LENGTH_LONG, GB.ERROR);
+            getDevice().setName("incopatible firmware");
+        }
+    }
+
+    private boolean isFirmwareCompatible(String firmwareVersion){
+        int major = Integer.parseInt(firmwareVersion.substring(6, 7));
+
+        return major == 1;
+    }
+
     @Override
     public boolean onCharacteristicChanged(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic) {
         switch (characteristic.getUuid().toString()) {