diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 8e280e6..55ce1f5 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -20,7 +20,13 @@
     </configurations>
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="cea36e80-e289-4d69-9030-7186d540ac0e" name="更改" comment="MDC RX" />
+    <list default="true" id="cea36e80-e289-4d69-9030-7186d540ac0e" name="更改" comment="MDC RX">
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/main.c" beforeDir="false" afterPath="$PROJECT_DIR$/main.c" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/misc.c" beforeDir="false" afterPath="$PROJECT_DIR$/misc.c" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/misc.h" beforeDir="false" afterPath="$PROJECT_DIR$/misc.h" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/radio.c" beforeDir="false" afterPath="$PROJECT_DIR$/radio.c" afterDir="false" />
+    </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
     <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
@@ -126,7 +132,7 @@
       <workItem from="1701413653518" duration="3544000" />
       <workItem from="1701430185864" duration="10115000" />
       <workItem from="1701559895523" duration="22519000" />
-      <workItem from="1701678199532" duration="355000" />
+      <workItem from="1701678199532" duration="2557000" />
     </task>
     <task id="LOCAL-00001" summary="bug fix">
       <created>1701136012311</created>
@@ -324,7 +330,21 @@
       <option name="project" value="LOCAL" />
       <updated>1701678519893</updated>
     </task>
-    <option name="localTasksCounter" value="29" />
+    <task id="LOCAL-00029" summary="MDC RX">
+      <created>1701678580088</created>
+      <option name="number" value="00029" />
+      <option name="presentableId" value="LOCAL-00029" />
+      <option name="project" value="LOCAL" />
+      <updated>1701678580088</updated>
+    </task>
+    <task id="LOCAL-00030" summary="MDC RX">
+      <created>1701678635953</created>
+      <option name="number" value="00030" />
+      <option name="presentableId" value="LOCAL-00030" />
+      <option name="project" value="LOCAL" />
+      <updated>1701678635953</updated>
+    </task>
+    <option name="localTasksCounter" value="31" />
     <servers />
   </component>
   <component name="TypeScriptGeneratedFilesManager">
diff --git a/main.c b/main.c
index 666d492..33f5998 100644
--- a/main.c
+++ b/main.c
@@ -49,7 +49,7 @@ void _putchar(char c)
 
 void Main(void)
 {
-	BOOT_Mode_t  BootMode;
+	//BOOT_Mode_t  BootMode;
 
 	// Enable clock gating of blocks we need
 	SYSCON_DEV_CLK_GATE = 0
@@ -86,7 +86,9 @@ void Main(void)
     SETTINGS_InitEEPROM();
 
     SETTINGS_LoadCalibration();
-
+#ifdef ENABLE_MDC1200
+    MDC1200_init();
+#endif
 	RADIO_ConfigureChannel(0, VFO_CONFIGURE_RELOAD);
 	RADIO_ConfigureChannel(1, VFO_CONFIGURE_RELOAD);
 
@@ -98,27 +100,23 @@ void Main(void)
 		BOARD_ADC_GetBatteryInfo(&gBatteryVoltages[i], &gBatteryCurrent);
 
 	BATTERY_GetReadings(false);
-#ifdef ENABLE_MDC1200
-    MDC1200_init();
-#endif
+
 	#ifdef ENABLE_AM_FIX
 		AM_fix_init();
 	#endif
 
-	BootMode = BOOT_GetMode();
+	//BootMode = BOOT_GetMode();
 	
-	if (BootMode == BOOT_MODE_F_LOCK)
-	{
-		gF_LOCK = true;            // flag to say include the hidden menu items
-        gMenuListCount = 49;
-    }else gMenuListCount=41;
+//	if (BootMode == BOOT_MODE_F_LOCK)
+        gMenuListCount = 48;
+
 
 	// wait for user to release all butts before moving on
-	if (/*!GPIO_CheckBit(&GPIOC->DATA, GPIOC_PIN_PTT) ||*/
-	     KEYBOARD_Poll() != KEY_INVALID ||
-		 BootMode != BOOT_MODE_NORMAL)
-	{	// keys are pressed
-		UI_DisplayReleaseKeys(BootMode);
+//	if (/*!GPIO_CheckBit(&GPIOC->DATA, GPIOC_PIN_PTT) ||*/
+//	     KEYBOARD_Poll() != KEY_INVALID ||
+//		 BootMode != BOOT_MODE_NORMAL)
+//	{	// keys are pressed
+//		UI_DisplayReleaseKeys(BootMode);
 		BACKLIGHT_TurnOn();
 		while (KEYBOARD_Poll() != KEY_INVALID)  // 500ms
 		{
@@ -126,7 +124,7 @@ void Main(void)
 		gKeyReading0 = KEY_INVALID;
 		gKeyReading1 = KEY_INVALID;
 		gDebounceCounter = 0;
-	}
+//	}
 //close PS
 //	if (!gChargingWithTypeC && gBatteryDisplayLevel == 0)
 //	{
diff --git a/misc.c b/misc.c
index d567f97..b3a12f1 100644
--- a/misc.c
+++ b/misc.c
@@ -226,7 +226,6 @@ bool          gIsNoaaMode;
 
 bool              gUpdateDisplay;
 
-bool              gF_LOCK = false;
 
 uint8_t           gShowChPrefix;
 
diff --git a/misc.h b/misc.h
index a8d4083..a875428 100644
--- a/misc.h
+++ b/misc.h
@@ -310,7 +310,6 @@ extern bool              gIsNoaaMode;
 #endif
 extern volatile bool         gNextTimeslice;
 extern bool                  gUpdateDisplay;
-extern bool                  gF_LOCK;
 #ifdef ENABLE_FMRADIO
 extern uint8_t           gFM_ChannelPosition;
 #endif
diff --git a/radio.c b/radio.c
index 4a030c8..137150f 100644
--- a/radio.c
+++ b/radio.c
@@ -780,6 +780,12 @@ void RADIO_SetupRegisters(bool switchToForeground)
         BK4819_DisableDTMF();
         BK4819_EnableDTMF();
         InterruptMask |= BK4819_REG_3F_DTMF_5TONE_FOUND;
+
+#ifdef ENABLE_MDC1200
+        BK4819_enable_mdc1200_rx(true);
+		InterruptMask |= BK4819_REG_3F_FSK_RX_SYNC | BK4819_REG_3F_FSK_RX_FINISHED | BK4819_REG_3F_FSK_FIFO_ALMOST_FULL;
+#endif
+
     }
     else
     {