diff --git a/radio/src/targets/common/arm/stm32/bootloader/boot.cpp b/radio/src/targets/common/arm/stm32/bootloader/boot.cpp
index 3bbcc3b20..cc9ada8fd 100644
--- a/radio/src/targets/common/arm/stm32/bootloader/boot.cpp
+++ b/radio/src/targets/common/arm/stm32/bootloader/boot.cpp
@@ -289,7 +289,7 @@ int main()
     if (tenms) {
       tenms = 0;
 
-      if (state != ST_USB) {
+      if (state != ST_USB && state != ST_FLASHING && state != ST_FLASH_DONE) {
         if (usbPlugged()) {
           state = ST_USB;
           if (!unlocked) {