diff --git a/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk6X/hwdef-bl.dat b/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk6X/hwdef-bl.dat
index 8ca7a6488f8d64..a8da5509565d15 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk6X/hwdef-bl.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk6X/hwdef-bl.dat
@@ -60,9 +60,9 @@ PD9 USART3_RX USART3
 # armed indication
 PE6 nARMED OUTPUT HIGH
 
-# start peripheral power off
-PF12 nVDD_5V_HIPOWER_EN OUTPUT HIGH
-PG4  nVDD_5V_PERIPH_EN OUTPUT HIGH
+# start peripheral power on
+PF12 nVDD_5V_HIPOWER_EN OUTPUT LOW
+PG4  nVDD_5V_PERIPH_EN OUTPUT LOW
 
 # LEDs
 PE3 LED_ACTIVITY OUTPUT OPENDRAIN HIGH # red
diff --git a/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk6X/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk6X/hwdef.dat
index 1cf5be3a9f7430..f61919636d9743 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk6X/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/Pixhawk6X/hwdef.dat
@@ -227,11 +227,9 @@ PF4  VDD_3V3_SENSORS2_EN OUTPUT HIGH
 PE7  VDD_3V3_SENSORS3_EN OUTPUT HIGH
 PG8  VDD_3V3_SENSORS4_EN OUTPUT HIGH
 
-# start peripheral power off, then enable after init
-# this prevents a problem with radios that use RTS for
-# bootloader hold
-PG10 nVDD_5V_HIPOWER_EN OUTPUT HIGH
-PG4  nVDD_5V_PERIPH_EN  OUTPUT HIGH
+# start peripheral power on
+PG10 nVDD_5V_HIPOWER_EN OUTPUT LOW
+PG4  nVDD_5V_PERIPH_EN  OUTPUT LOW
 
 # Control of Spektrum power pin
 PH2 SPEKTRUM_PWR OUTPUT HIGH GPIO(73)