diff --git a/left/src/bridge_protocol_handler.c b/left/src/bridge_protocol_handler.c
index 3b42f5f..760f7ca 100644
--- a/left/src/bridge_protocol_handler.c
+++ b/left/src/bridge_protocol_handler.c
@@ -43,9 +43,7 @@ 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;
diff --git a/left/src/led_pwm.c b/left/src/led_pwm.c
index 691c973..fa6cdee 100644
--- a/left/src/led_pwm.c
+++ b/left/src/led_pwm.c
@@ -2,7 +2,6 @@
 #include "fsl_port.h"
 
 void LedPwm_Init() {
-#if UHK_PCB_MAJOR_VERSION >= 7
     CLOCK_EnableClock(LED_PWM_CLOCK);
     PORT_SetPinMux(LED_PWM_PORT, LED_PWM_PIN, kPORT_MuxAlt2);
 
@@ -21,13 +20,10 @@ void LedPwm_Init() {
                  kTPM_EdgeAlignedPwm, TPM_PWM_FREQUENCY, TPM_SOURCE_CLOCK);
 
     TPM_StartTimer(LED_PWM_TPM_BASEADDR, kTPM_SystemClock);
-#endif
 }
 
 void LedPwm_SetBrightness(uint8_t brightnessPercent)
 {
-#if UHK_PCB_MAJOR_VERSION >= 7
     TPM_UpdatePwmDutycycle(LED_PWM_TPM_BASEADDR, LED_PWM_TPM_CHANNEL,
                            kTPM_EdgeAlignedPwm, 100 - brightnessPercent);
-#endif
 }
diff --git a/left/src/main.c b/left/src/main.c
index 7a2e43d..877ee8b 100644
--- a/left/src/main.c
+++ b/left/src/main.c
@@ -5,7 +5,6 @@
 key_matrix_t keyMatrix = {
     .colNum = KEYBOARD_MATRIX_COLS_NUM,
     .rowNum = KEYBOARD_MATRIX_ROWS_NUM,
-#if UHK_PCB_MAJOR_VERSION >= 7
     .cols = (key_matrix_pin_t[]){
         {PORTB, GPIOB, kCLOCK_PortB, 11},
         {PORTA, GPIOA, kCLOCK_PortA, 6},
@@ -22,24 +21,6 @@ key_matrix_t keyMatrix = {
         {PORTA, GPIOA, kCLOCK_PortA, 7},
         {PORTA, GPIOA, kCLOCK_PortA, 4}
     }
-#else
-    .cols = (key_matrix_pin_t[]){
-        {PORTB, GPIOB, kCLOCK_PortB, 11},
-        {PORTA, GPIOA, kCLOCK_PortA, 6},
-        {PORTA, GPIOA, kCLOCK_PortA, 8},
-        {PORTB, GPIOB, kCLOCK_PortB, 0},
-        {PORTB, GPIOB, kCLOCK_PortB, 6},
-        {PORTA, GPIOA, kCLOCK_PortA, 3},
-        {PORTB, GPIOB, kCLOCK_PortB, 5}
-    },
-    .rows = (key_matrix_pin_t[]){
-        {PORTB, GPIOB, kCLOCK_PortB, 7},
-        {PORTB, GPIOB, kCLOCK_PortB, 10},
-        {PORTA, GPIOA, kCLOCK_PortA, 5},
-        {PORTA, GPIOA, kCLOCK_PortA, 7},
-        {PORTA, GPIOA, kCLOCK_PortA, 4}
-    }
-#endif
 };
 
 volatile bool DisableKeyMatrixScanState;
diff --git a/left/src/test_led.h b/left/src/test_led.h
index d6c3aab..2afb597 100644
--- a/left/src/test_led.h
+++ b/left/src/test_led.h
@@ -10,22 +10,11 @@
     #define LOGIC_LED_ON  0U
     #define LOGIC_LED_OFF 1U
 
-#if UHK_PCB_MAJOR_VERSION >= 7
-
     #define TEST_LED_GPIO  GPIOB
     #define TEST_LED_PORT  PORTB
     #define TEST_LED_CLOCK kCLOCK_PortB
     #define TEST_LED_PIN   13
 
-#else
-
-    #define TEST_LED_GPIO  GPIOA
-    #define TEST_LED_PORT  PORTA
-    #define TEST_LED_CLOCK kCLOCK_PortA
-    #define TEST_LED_PIN   12
-
-#endif
-
     #define TEST_LED_ON() GPIO_SetPinsOutput(TEST_LED_GPIO, 1U << TEST_LED_PIN)
     #define TEST_LED_OFF() GPIO_ClearPinsOutput(TEST_LED_GPIO, 1U << TEST_LED_PIN)
     #define TEST_LED_SET(state) GPIO_WritePinOutput(TEST_LED_GPIO, TEST_LED_PIN, (state))