diff --git a/libraries/AP_HAL_ChibiOS/hwdef/CarbonixCommon/defaults.parm b/libraries/AP_HAL_ChibiOS/hwdef/CarbonixCommon/defaults.parm
index 9326763a75..d314fdca0a 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/CarbonixCommon/defaults.parm
+++ b/libraries/AP_HAL_ChibiOS/hwdef/CarbonixCommon/defaults.parm
@@ -36,11 +36,9 @@ FENCE_AUTOENABLE,3
 FENCE_ENABLE,1
 FENCE_OPTIONS,0
 FLTMODE1,11
-FLTMODE2,17
 FLTMODE3,10
-FLTMODE4,6
-FLTMODE5,19
-FLTMODE6,17
+FLTMODE4,19
+FLTMODE5,7
 FS_GCS_ENABL,1
 FS_LONG_ACTN,1
 FS_LONG_TIMEOUT,10