diff --git a/firmware/apps/dfu/main.c b/firmware/apps/dfu/main.c
index a90b9ac9..ff31296c 100644
--- a/firmware/apps/dfu/main.c
+++ b/firmware/apps/dfu/main.c
@@ -194,6 +194,12 @@ extern int main(void)
 	board_main_top();
 
 	TRACE_INFO("USB init...\n\r");
+	/* Signal USB reset by disabling the pull-up on USB D+ for at least 10 ms */
+	const Pin usb_dp_pullup = PIN_USB_PULLUP;
+	PIO_Configure(&usb_dp_pullup, 1);
+	PIO_Set(&usb_dp_pullup);
+	mdelay(15);
+	PIO_Clear(&usb_dp_pullup);
 	USBDFU_Initialize(&dfu_descriptors);
 
 	while (USBD_GetState() < USBD_STATE_CONFIGURED) {
diff --git a/firmware/libboard/common/include/board_common.h b/firmware/libboard/common/include/board_common.h
index 9cd1f89f..c3bb2357 100644
--- a/firmware/libboard/common/include/board_common.h
+++ b/firmware/libboard/common/include/board_common.h
@@ -85,11 +85,10 @@
 #define SIM_PWEN        PIO_PA5
 #define VCC_FWD         PIO_PA26
 
-
-//**     USB **/
-// USB pull-up control pin definition (PA16).
-// Default: 1 (USB Pullup deactivated) 
-#define PIN_USB_PULLUP  {1 << 16, PIOA, ID_PIOA, PIO_OUTPUT_1, PIO_DEFAULT}
+/** Pin configuration to control USB pull-up on D+
+ *  @details the USB pull-up on D+ is enable by default on the board but can be disabled by setting PA16 high
+ */
+#define PIN_USB_PULLUP  {PIO_PA16, PIOA, ID_PIOA, PIO_OUTPUT_0, PIO_DEFAULT}
 
 // Board has UDP controller
 #define BOARD_USB_UDP
diff --git a/firmware/libcommon/source/usb.c b/firmware/libcommon/source/usb.c
index bb77361b..d317435d 100644
--- a/firmware/libcommon/source/usb.c
+++ b/firmware/libcommon/source/usb.c
@@ -603,11 +603,17 @@ static const USBDDriverDescriptors driverDescriptors = {
 
 void SIMtrace_USB_Initialize(void)
 {
+
+	/* Signal USB reset by disabling the pull-up on USB D+ for at least 10 ms */
+	const Pin usb_dp_pullup = PIN_USB_PULLUP;
+	PIO_Configure(&usb_dp_pullup, 1);
+	PIO_Set(&usb_dp_pullup);
+	mdelay(15);
+	PIO_Clear(&usb_dp_pullup);
+
 	// Get std USB driver
 	USBDDriver *pUsbd = USBD_GetDriver();
 
-	TRACE_DEBUG(".");
-
 	// Initialize standard USB driver
 	USBDDriver_Initialize(pUsbd, &driverDescriptors, 0);	// Multiple interface settings not supported
 	USBD_Init();