diff --git a/libraries/AP_HAL_ChibiOS/hwdef/SkystarsH7HD-bdshot/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/SkystarsH7HD-bdshot/hwdef.dat
index 9ca86ed2e1..807301c22d 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/SkystarsH7HD-bdshot/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/SkystarsH7HD-bdshot/hwdef.dat
@@ -18,7 +18,6 @@ define STM32_I2C_USE_DMA FALSE
 
 define RELAY2_PIN_DEFAULT 81 # Pit-1
 define RELAY3_PIN_DEFAULT 82 # PIN-EN
-define RELAY4_PIN_DEFAULT 83 # CAM-C
 
 # Motor order Betaflight/X
 define HAL_FRAME_TYPE_DEFAULT 12
diff --git a/libraries/AP_HAL_ChibiOS/hwdef/SkystarsH7HD/hwdef-bl.dat b/libraries/AP_HAL_ChibiOS/hwdef/SkystarsH7HD/hwdef-bl.dat
index baeef27d05..2bae841c56 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/SkystarsH7HD/hwdef-bl.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/SkystarsH7HD/hwdef-bl.dat
@@ -51,5 +51,6 @@ PE11 BMI270_CS2 CS
 
 ## pull up VTX power so that it is enabled in bootloader
 PC5 VTX_PWR OUTPUT HIGH     # labelled as "Pit-1"
-PC2 VID_SELECT OUTPUT LOW   # labelled as "PIN-EN"
+# pull up PIN-EN so that Video 1 is selected by default
+PC2 VID_SELECT OUTPUT HIGH   # labelled as "PIN-EN"
 PD2 CAM_C OUTPUT LOW        # labelled as "CAM-C"
diff --git a/libraries/AP_HAL_ChibiOS/hwdef/SkystarsH7HD/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/SkystarsH7HD/hwdef.dat
index 2af2e99154..b14d1053cb 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/SkystarsH7HD/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/SkystarsH7HD/hwdef.dat
@@ -96,9 +96,11 @@ PC0 BATT_VOLTAGE_SENS ADC1 SCALE(1)
 PC1 BATT_CURRENT_SENS ADC1 SCALE(1)
 
 # VTX Power control - should be high at startup to ensure power
-PC5 VTX_PWR OUTPUT LOW GPIO(81)     # labelled as "Pit-1"
-PC2 VID_SELECT OUTPUT LOW GPIO(82)  # labelled as "PIN-EN"
-PD2 CAM_C OUTPUT LOW GPIO(83)       # labelled as "CAM-C"
+PC5 VTX_PWR OUTPUT HIGH GPIO(81)     # labelled as "Pit-1"
+# Camera selection - should be high so that Video 1 is selected by default
+PC2 VID_SELECT OUTPUT HIGH GPIO(82)  # labelled as "PIN-EN"
+# OSD pad for TTL based OSD control, not supported by AP
+PD2 CAM_C OUTPUT LOW GPIO(83)        # labelled as "CAM-C"
 
 
 # define default battery setup