diff --git a/left/src/bridge_protocol_handler.c b/left/src/bridge_protocol_handler.c
index 998ea9d..3b42f5f 100644
--- a/left/src/bridge_protocol_handler.c
+++ b/left/src/bridge_protocol_handler.c
@@ -6,6 +6,7 @@
 #include "led_pwm.h"
 #include "bridge_protocol.h"
 #include "main.h"
+#include "init_peripherials.h"
 
 void SetError(uint8_t error);
 void SetGenericError();
@@ -42,11 +43,17 @@ void BridgeProtocolHandler()
         case BridgeCommand_SetLedPwmBrightness:
             BridgeTxSize = 0;
             uint8_t brightnessPercent = BridgeRxBuffer[1];
+#if UHK_PCB_MAJOR_VERSION >= 7
             LedPwm_SetBrightness(brightnessPercent);
+#endif
             break;
         case BridgeCommand_SetDisableKeyMatrixScanState:
             BridgeTxSize = 0;
             DisableKeyMatrixScanState = BridgeRxBuffer[1];
             break;
+        case BridgeCommand_SetDisableLedSdb:
+            BridgeTxSize = 0;
+            GPIO_WritePinOutput(LED_DRIVER_SDB_GPIO, LED_DRIVER_SDB_PIN, BridgeRxBuffer[1] ? 0 : 1);
+            break;
     }
 }
diff --git a/right/src/bridge_slaves/bridge_slave_uhk_module.c b/right/src/bridge_slaves/bridge_slave_uhk_module.c
index 56f3c0e..93333e8 100644
--- a/right/src/bridge_slaves/bridge_slave_uhk_module.c
+++ b/right/src/bridge_slaves/bridge_slave_uhk_module.c
@@ -51,6 +51,18 @@ bool BridgeSlaveUhkModuleHandler(uint8_t uhkModuleId)
             txBuffer[0] = BridgeCommand_SetDisableKeyMatrixScanState;
             txBuffer[1] = TestStates.disableKeyMatrixScan;
             I2cAsyncWrite(I2C_ADDRESS_LEFT_KEYBOARD_HALF, txBuffer, 2);
+            currentUhkModuleField = UhkModuleField_SendLedPwmBrightness;
+            break;
+        case UhkModuleField_SendLedPwmBrightness:
+            txBuffer[0] = BridgeCommand_SetDisableKeyMatrixScanState;
+            txBuffer[1] = TestStates.disableKeyMatrixScan;
+            I2cAsyncWrite(I2C_ADDRESS_LEFT_KEYBOARD_HALF, txBuffer, 2);
+            currentUhkModuleField = UhkModuleField_DisableLedSdb;
+            break;
+        case UhkModuleField_DisableLedSdb:
+            txBuffer[0] = BridgeCommand_SetDisableLedSdb;
+            txBuffer[1] = TestStates.disableLedSdb;
+            I2cAsyncWrite(I2C_ADDRESS_LEFT_KEYBOARD_HALF, txBuffer, 2);
             currentUhkModuleField = UhkModuleField_SendKeystatesRequestCommand;
             break;
     }
diff --git a/right/src/bridge_slaves/bridge_slave_uhk_module.h b/right/src/bridge_slaves/bridge_slave_uhk_module.h
index 0aa0945..33d6b65 100644
--- a/right/src/bridge_slaves/bridge_slave_uhk_module.h
+++ b/right/src/bridge_slaves/bridge_slave_uhk_module.h
@@ -17,6 +17,8 @@
         UhkModuleField_SendPwmBrightnessCommand,
         UhkModuleField_SendTestLedCommand,
         UhkModuleField_SendDisableKeyMatrixScanState,
+        UhkModuleField_SendLedPwmBrightness,
+        UhkModuleField_DisableLedSdb,
     } uhk_module_field_t;
 
     typedef struct {
diff --git a/right/src/usb_report_updater.c b/right/src/usb_report_updater.c
index 034955e..6dd48ee 100644
--- a/right/src/usb_report_updater.c
+++ b/right/src/usb_report_updater.c
@@ -7,6 +7,8 @@
 #include "test_states.h"
 #include "peripherals/test_led.h"
 #include "bridge_slaves/bridge_slave_led_driver.h"
+#include "bridge_slaves/bridge_slave_uhk_module.h"
+#include "led_pwm.h"
 
 static uint8_t activeLayer = LAYER_ID_BASE;
 static uint8_t mouseWheelDivisorCounter = 0;
@@ -94,6 +96,14 @@ void processTestAction(key_action_t testAction) {
     case TestAction_DisableLedDriverPwm:
         SetLeds(0);
         break;
+    case TestAction_DisableLedFetPwm:
+        LedPwm_SetBrightness(0);
+        UhkModuleStates[0].ledPwmBrightness = 0;
+        break;
+    case TestAction_DisableLedSdb:
+        GPIO_WritePinOutput(LED_DRIVER_SDB_GPIO, LED_DRIVER_SDB_PIN, 0);
+        TestStates.disableLedSdb = true;
+        break;
     }
 }
 
diff --git a/shared/bridge_protocol.h b/shared/bridge_protocol.h
index 1a5a703..309eef6 100644
--- a/shared/bridge_protocol.h
+++ b/shared/bridge_protocol.h
@@ -8,6 +8,7 @@
         BridgeCommand_SetTestLed,
         BridgeCommand_SetLedPwmBrightness,
         BridgeCommand_SetDisableKeyMatrixScanState,
+        BridgeCommand_SetDisableLedSdb,
     } bridge_command_t;
 
 #endif