diff --git a/ports/stm32f4/peripherals/stm32f4/stm32f411xe/gpio.c b/ports/stm32f4/peripherals/stm32f4/stm32f411xe/gpio.c
index 2b80647c0e..ed1c33b642 100644
--- a/ports/stm32f4/peripherals/stm32f4/stm32f411xe/gpio.c
+++ b/ports/stm32f4/peripherals/stm32f4/stm32f411xe/gpio.c
@@ -24,86 +24,6 @@
  * THE SOFTWARE.
  */
 
-/* GPIO PIN REFERENCE
-#define DATA_Ready_Pin GPIO_PIN_2
-#define DATA_Ready_GPIO_Port GPIOE
-#define CS_I2C_SPI_Pin GPIO_PIN_3
-#define CS_I2C_SPI_GPIO_Port GPIOE
-#define INT1_Pin GPIO_PIN_4
-#define INT1_GPIO_Port GPIOE
-#define INT2_Pin GPIO_PIN_5
-#define INT2_GPIO_Port GPIOE
-#define PC14_OSC32_IN_Pin GPIO_PIN_14
-#define PC14_OSC32_IN_GPIO_Port GPIOC
-#define PC15_OSC32_OUT_Pin GPIO_PIN_15
-#define PC15_OSC32_OUT_GPIO_Port GPIOC
-#define PH0_OSC_IN_Pin GPIO_PIN_0
-#define PH0_OSC_IN_GPIO_Port GPIOH
-#define PH1_OSC_OUT_Pin GPIO_PIN_1
-#define PH1_OSC_OUT_GPIO_Port GPIOH
-#define OTG_FS_PowerSwitchOn_Pin GPIO_PIN_0
-#define OTG_FS_PowerSwitchOn_GPIO_Port GPIOC
-#define PDM_OUT_Pin GPIO_PIN_3
-#define PDM_OUT_GPIO_Port GPIOC
-#define I2S3_WS_Pin GPIO_PIN_4
-#define I2S3_WS_GPIO_Port GPIOA
-#define SPI1_SCK_Pin GPIO_PIN_5
-#define SPI1_SCK_GPIO_Port GPIOA
-#define SPI1_MISO_Pin GPIO_PIN_6
-#define SPI1_MISO_GPIO_Port GPIOA
-#define SPI1_MOSI_Pin GPIO_PIN_7
-#define SPI1_MOSI_GPIO_Port GPIOA
-#define CLK_IN_Pin GPIO_PIN_10
-#define CLK_IN_GPIO_Port GPIOB
-#define LD4_Pin GPIO_PIN_12
-#define LD4_GPIO_Port GPIOD
-#define LD3_Pin GPIO_PIN_13
-#define LD3_GPIO_Port GPIOD
-#define LD5_Pin GPIO_PIN_14
-#define LD5_GPIO_Port GPIOD
-#define LD6_Pin GPIO_PIN_15
-#define LD6_GPIO_Port GPIOD
-#define I2S3_MCK_Pin GPIO_PIN_7
-#define I2S3_MCK_GPIO_Port GPIOC
-#define VBUS_FS_Pin GPIO_PIN_9
-#define VBUS_FS_GPIO_Port GPIOA
-#define OTG_FS_ID_Pin GPIO_PIN_10
-#define OTG_FS_ID_GPIO_Port GPIOA
-#define OTG_FS_DM_Pin GPIO_PIN_11
-#define OTG_FS_DM_GPIO_Port GPIOA
-#define OTG_FS_DP_Pin GPIO_PIN_12
-#define OTG_FS_DP_GPIO_Port GPIOA
-#define SWDIO_Pin GPIO_PIN_13
-#define SWDIO_GPIO_Port GPIOA
-#define SWCLK_Pin GPIO_PIN_14
-#define SWCLK_GPIO_Port GPIOA
-#define I2S3_SCK_Pin GPIO_PIN_10
-#define I2S3_SCK_GPIO_Port GPIOC
-#define I2S3_SD_Pin GPIO_PIN_12
-#define I2S3_SD_GPIO_Port GPIOC
-#define Audio_RST_Pin GPIO_PIN_4
-#define Audio_RST_GPIO_Port GPIOD
-#define OTG_FS_OverCurrent_Pin GPIO_PIN_5
-#define OTG_FS_OverCurrent_GPIO_Port GPIOD
-#define SWO_Pin GPIO_PIN_3
-#define SWO_GPIO_Port GPIOB
-#define Audio_SCL_Pin GPIO_PIN_6
-#define Audio_SCL_GPIO_Port GPIOB
-#define Audio_SDA_Pin GPIO_PIN_9
-#define Audio_SDA_GPIO_Port GPIOB
-#define MEMS_INT2_Pin GPIO_PIN_1
-#define MEMS_INT2_GPIO_Port GPIOE
-*/
-
-#define LD4_Pin GPIO_PIN_12
-#define LD4_GPIO_Port GPIOD
-#define LD3_Pin GPIO_PIN_13
-#define LD3_GPIO_Port GPIOD
-#define LD5_Pin GPIO_PIN_14
-#define LD5_GPIO_Port GPIOD
-#define LD6_Pin GPIO_PIN_15
-#define LD6_GPIO_Port GPIOD
-
 #include "stm32f4xx_hal.h"
 #include "stm32f4/gpio.h"
 #include "common-hal/microcontroller/Pin.h"
@@ -119,31 +39,12 @@ void stm32f4_peripherals_gpio_init(void) {
     __HAL_RCC_GPIOB_CLK_ENABLE();
     __HAL_RCC_GPIOD_CLK_ENABLE();
 
-    /*Configure GPIO pin Output Level */
-    HAL_GPIO_WritePin(GPIOD, LD4_Pin|LD3_Pin|LD5_Pin|LD6_Pin, GPIO_PIN_RESET);
-
-    /*Configure GPIO pins : LD4_Pin LD3_Pin LD5_Pin LD6_Pin */
-    GPIO_InitStruct.Pin = LD4_Pin|LD3_Pin|LD5_Pin|LD6_Pin;
-    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
-    GPIO_InitStruct.Pull = GPIO_NOPULL;
-    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
-    HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
-
-    //Status LED chain
-    stm32f4_peripherals_status_led(0,1);
-    stm32f4_peripherals_status_led(1,0);
-    stm32f4_peripherals_status_led(2,0);
-    stm32f4_peripherals_status_led(3,0);
-
     //Never reset pins
     never_reset_pin_number(2,13); //PC13 anti tamp
     never_reset_pin_number(2,14); //PC14 OSC32_IN
     never_reset_pin_number(2,15); //PC15 OSC32_OUT
     never_reset_pin_number(0,13); //PA13 SWDIO
     never_reset_pin_number(0,14); //PA14 SWCLK
-    never_reset_pin_number(0,15); //PA15 JTDI
-    never_reset_pin_number(1,3); //PB3 JTDO
-    never_reset_pin_number(1,4); //PB4 JTRST
 
     // Port H is not included in GPIO port array
     // never_reset_pin_number(5,0); //PH0 JTDO   
@@ -152,18 +53,6 @@ void stm32f4_peripherals_gpio_init(void) {
 
 //LEDs are inverted on F411 DISCO
 void stm32f4_peripherals_status_led(uint8_t led, uint8_t state) {
-    switch(led)
-    {
-        case 0:     HAL_GPIO_WritePin(GPIOD, LD4_Pin, (state ^ 1));
-               break;
-        case 1:     HAL_GPIO_WritePin(GPIOD, LD3_Pin, (state ^ 1));
-               break;
-        case 2:     HAL_GPIO_WritePin(GPIOD, LD5_Pin, (state ^ 1));
-               break;
-        case 3:     HAL_GPIO_WritePin(GPIOD, LD6_Pin, (state ^ 1));
-               break;
-        default: break;
-    }
 }