diff --git a/radio/src/io/bootloader_flash.cpp b/radio/src/io/bootloader_flash.cpp
index 0df79800f..1dd5188b6 100644
--- a/radio/src/io/bootloader_flash.cpp
+++ b/radio/src/io/bootloader_flash.cpp
@@ -37,10 +37,13 @@ bool isBootloader(const char * filename)
 void bootloaderFlash(const char * filename)
 {
   FIL file;
-  f_open(&file, filename, FA_READ);
   uint8_t buffer[1024];
   UINT count;
 
+  pausePulses();
+
+  f_open(&file, filename, FA_READ);
+
   static uint8_t unlocked = 0;
   if (!unlocked) {
     unlocked = 1;
@@ -69,6 +72,7 @@ void bootloaderFlash(const char * filename)
   }
 
   watchdogSuspend(0);
+  WDG_RESET();
 
   if (unlocked) {
     lockFlash();
@@ -76,4 +80,6 @@ void bootloaderFlash(const char * filename)
   }
 
   f_close(&file);
+
+  resumePulses();
 }