Revive visual indication of gyro detection failure

src/main/drivers/system.c

@@ -164,9 +164,8 @@ void delay(uint32_t ms)
 #define SHORT_FLASH_DURATION 50
 #define CODE_FLASH_DURATION 250
 
-void failureMode(failureMode_e mode)
+void failureLedCode(failureMode_e mode, int codeRepeatsRemaining)
 {
-    int codeRepeatsRemaining = 10;
     int codeFlashesRemaining;
     int shortFlashesRemaining;
 
@@ -201,6 +200,12 @@ void failureMode(failureMode_e mode)
         delay(1000);
     }
 
+}
+
+void failureMode(failureMode_e mode)
+{
+    failureLedCode(mode, 10);
+
 #ifdef DEBUG
     systemReset();
 #else

src/main/drivers/system.h

@@ -33,6 +33,7 @@ typedef enum {
 } failureMode_e;
 
 // failure
+void failureLedCode(failureMode_e mode, int repeatCount);
 void failureMode(failureMode_e mode);
 
 // bootloader/IAP

src/main/fc/fc_init.c

@@ -478,7 +478,8 @@ void init(void)
     initBoardAlignment(boardAlignment());
 
     if (!sensorsAutodetect()) {
-        // if gyro was not detected due to whatever reason, don't arm.
+        // if gyro was not detected due to whatever reason, notify and don't arm.
+        failureLedCode(FAILURE_MISSING_ACC, 2);
         setArmingDisabled(ARMING_DISABLED_NO_GYRO);
     }