diff --git a/device.mk b/device.mk
index 73f54729..20d72ff3 100755
--- a/device.mk
+++ b/device.mk
@@ -642,3 +642,8 @@ PRODUCT_PROPERTY_OVERRIDES += \
 PRODUCT_PROPERTY_OVERRIDES += \
     ro.camera.notify_nfc=1
 
+# default usb oem functions
+ifneq (,$(filter userdebug eng, $(TARGET_BUILD_VARIANT)))
+  PRODUCT_PROPERTY_OVERRIDES += \
+      persist.vendor.usb.usbradio.config=diag
+endif