diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/huami/zeppos/ZeppOsSupport.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/huami/zeppos/ZeppOsSupport.java
index 426a35f56..06f33ba3f 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/huami/zeppos/ZeppOsSupport.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/huami/zeppos/ZeppOsSupport.java
@@ -280,7 +280,7 @@ public class ZeppOsSupport extends HuamiSupport implements ZeppOsFileTransferSer
 
     @Override
     public void onTestNewFunction() {
-        setRawSensor(!rawSensor);
+        requestMTU(247);
     }
 
     @Override