diff --git a/Marlin/src/HAL/LPC1768/HAL.cpp b/Marlin/src/HAL/LPC1768/HAL.cpp
index f567f26c9e..26a2c0e7db 100644
--- a/Marlin/src/HAL/LPC1768/HAL.cpp
+++ b/Marlin/src/HAL/LPC1768/HAL.cpp
@@ -64,8 +64,9 @@ int16_t PARSED_PIN_INDEX(const char code, const int16_t dval) {
 }
 
 void flashFirmware(const int16_t) {
+  delay(500);          // Give OS time to disconnect
   USB_Connect(false);  // USB clear connection
-  delay(2000);         // Give OS time to notice
+  delay(1000);         // Give OS time to notice
   NVIC_SystemReset();
 }