diff --git a/Makefile b/Makefile
index 7e81b13..412f224 100644
--- a/Makefile
+++ b/Makefile
@@ -38,7 +38,7 @@ ENABLE_COPY_CHAN_TO_VFO       ?= 1
 ENABLE_SPECTRUM               ?= 1
 ENABLE_REDUCE_LOW_MID_TX_POWER?= 0
 ENABLE_BYP_RAW_DEMODULATORS   ?= 0
-ENABLE_BLMIN_TMP_OFF          ?= 1
+ENABLE_BLMIN_TMP_OFF          ?= 0
 ENABLE_SCAN_RANGES            ?= 1
 ENABLE_FEAT_F4HWN             ?= 1
 
@@ -55,7 +55,11 @@ ENABLE_LTO                    ?= 1
 
 #############################################################
 
-TARGET = firmware
+ifeq ($(ENABLE_FEAT_F4HWN),1)
+	TARGET = f4hwn
+else
+	TARGET = firmware
+endif
 
 ifeq ($(ENABLE_CLANG),1)
 	# GCC's linker, ld, doesn't understand LLVM's generated bytecode
@@ -206,7 +210,7 @@ ifeq ($(ENABLE_FEAT_F4HWN),1)
 	VERSION_STRING_1 ?= v0.22
 
 	AUTHOR_STRING_2 ?= F4HWN
-	VERSION_STRING_2 ?= v2.2
+	VERSION_STRING_2 ?= v2.3
 
 	AUTHOR_STRING ?= $(AUTHOR_STRING_1)+$(AUTHOR_STRING_2)
 	VERSION_STRING ?= $(VERSION_STRING_2)
@@ -235,7 +239,8 @@ endif
 
 CFLAGS =
 ifeq ($(ENABLE_CLANG),0)
-	CFLAGS += -Os -Wall -Werror -mcpu=cortex-m0 -fno-builtin -fshort-enums -fno-delete-null-pointer-checks -std=c2x -MMD
+	CFLAGS += -Oz -Wall -Werror -mcpu=cortex-m0 -fshort-enums -fno-delete-null-pointer-checks -std=c2x -MMD
+	#CFLAGS += -Os -Wall -Werror -mcpu=cortex-m0 -fno-builtin -fshort-enums -fno-delete-null-pointer-checks -std=c2x -MMD
 	#CFLAGS += -Os -Wall -Werror -mcpu=cortex-m0 -fno-builtin -fshort-enums -fno-delete-null-pointer-checks -std=c11 -MMD
 	#CFLAGS += -Os -Wall -Werror -mcpu=cortex-m0 -fno-builtin -fshort-enums -fno-delete-null-pointer-checks -std=c99 -MMD
 	#CFLAGS += -Os -Wall -Werror -mcpu=cortex-m0 -fno-builtin -fshort-enums -fno-delete-null-pointer-checks -std=gnu99 -MMD
diff --git a/README.md b/README.md
index 46b9851..8e826c6 100644
--- a/README.md
+++ b/README.md
@@ -47,6 +47,7 @@ Special thanks to Jean-Cyrille F6IWW, Fabrice 14RC123, David F4BPP, Olivier, Fr
     * Step value,
     * CTCSS or DCS value,
     * KeyLock message,
+    * last RX,
     * and more...
 * new menu entries:
     * add SetLow menu to set low power (<20mW, 125mW, 250mW, 500mW and 1W),
@@ -71,6 +72,8 @@ Special thanks to Jean-Cyrille F6IWW, Fabrice 14RC123, David F4BPP, Olivier, Fr
 * new key combinations:
     * add the F + UP or F + DOWN key combination to dynamically change the Squelch level,
     * add the F + F1 or F + F2 key combination to dynamically change the Step,
+    * add F+8 to quickly switch backlight between BLMin and BLMax on demand (this bypass BackLt strategy),
+    * add F+9 to return to BackLt strategy.
 * many fix:
     * squelch, 
     * s-meter,
@@ -79,7 +82,6 @@ Special thanks to Jean-Cyrille F6IWW, Fabrice 14RC123, David F4BPP, Olivier, Fr
     * scan range limit,
     * and more...
 * enabled ENABLE_CTCSS_TAIL_PHASE_SHIFT,
-* enabled ENABLE_BLMIN_TMP_OFF,
 * disabled ENABLE_DTMF_CALLING,
 * disabled SCRAMBLER,
 * unlock TX on all bands needs only to be repeat 3 times,
diff --git a/app/action.c b/app/action.c
index cf93bf9..d3ccb61 100644
--- a/app/action.c
+++ b/app/action.c
@@ -105,6 +105,7 @@ void (*action_opt_table[])(void) = {
 	[ACTION_OPT_RXMODE] = &ACTION_RxMode,
 	[ACTION_OPT_PTT] = &ACTION_Ptt,
 	[ACTION_OPT_WN] = &ACTION_Wn,
+	[ACTION_OPT_BACKLIGHT] = &ACTION_BackLight,
 #else
 	[ACTION_OPT_RXMODE] = &FUNCTION_NOP,
 #endif
@@ -487,4 +488,37 @@ void ACTION_Wn(void)
 	BK4819_SetFilterBandwidth(gTxVfo->CHANNEL_BANDWIDTH, false);
 #endif
 }
+
+void ACTION_BackLight(void)
+{
+	if(gBackLight)
+	{
+		gEeprom.BACKLIGHT_TIME = gBacklightTimeOriginal;
+	}
+	gBackLight = false;
+	BACKLIGHT_TurnOn();
+}
+
+void ACTION_BackLightOnDemand(void)
+{
+	if(gBackLight == false)
+	{
+		gBacklightTimeOriginal = gEeprom.BACKLIGHT_TIME;
+		gEeprom.BACKLIGHT_TIME = 7;
+		gBackLight = true;
+	}
+	else
+	{
+		if(gBacklightBrightnessOld == gEeprom.BACKLIGHT_MAX)
+		{
+			gEeprom.BACKLIGHT_TIME = 0;
+		}
+		else
+		{
+			gEeprom.BACKLIGHT_TIME = 7;
+		}
+	}
+	
+	BACKLIGHT_TurnOn();
+}
 #endif
\ No newline at end of file
diff --git a/app/action.h b/app/action.h
index 4dc7937..1d37084 100644
--- a/app/action.h
+++ b/app/action.h
@@ -39,6 +39,8 @@ void ACTION_SwitchDemodul(void);
 	void ACTION_RxMode(void);
 	void ACTION_Ptt(void);
 	void ACTION_Wn(void);
+	void ACTION_BackLightOnDemand(void);
+	void ACTION_BackLight(void);
 #endif
 
 void ACTION_Handle(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld);
diff --git a/app/main.c b/app/main.c
index 7d44ed7..8f9a9e1 100644
--- a/app/main.c
+++ b/app/main.c
@@ -161,15 +161,19 @@ static void processFKeyFunction(const KEY_Code_t Key, const bool beep)
 			break;
 
 		case KEY_2:
+			#ifdef ENABLE_FEAT_F4HWN
+				gVfoConfigureMode     = VFO_CONFIGURE;
+			#endif
 			COMMON_SwitchVFOs();
-
 			if (beep)
 				gBeepToPlay = BEEP_1KHZ_60MS_OPTIONAL;
 			break;
 
 		case KEY_3:
+			#ifdef ENABLE_FEAT_F4HWN
+				gVfoConfigureMode     = VFO_CONFIGURE;
+			#endif
 			COMMON_SwitchVFOMode();
-
 			if (beep)
 				gBeepToPlay = BEEP_500HZ_60MS_DOUBLE_BEEP_OPTIONAL;
 
@@ -456,6 +460,17 @@ static void MAIN_Key_DIGITS(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld)
 	gWasFKeyPressed = false;
 	gUpdateStatus   = true;
 
+	if(Key == 8)
+	{
+		ACTION_BackLightOnDemand();
+		return;
+	}
+	else if(Key == 9)
+	{
+		ACTION_BackLight();
+		return;
+	}
+
 	processFKeyFunction(Key, true);
 }
 
diff --git a/app/menu.c b/app/menu.c
index ab5ab3c..2af07ec 100644
--- a/app/menu.c
+++ b/app/menu.c
@@ -559,6 +559,9 @@ void MENU_AcceptSetting(void)
 
 		case MENU_ABR:
 			gEeprom.BACKLIGHT_TIME = gSubMenuSelection;
+			#ifdef ENABLE_FEAT_F4HWN
+				gBackLight = false;
+			#endif
 			break;
 
 		case MENU_ABR_MIN:
@@ -1007,7 +1010,18 @@ void MENU_ShowCurrentSetting(void)
 #endif
 
 		case MENU_ABR:
-			gSubMenuSelection = gEeprom.BACKLIGHT_TIME;
+			#ifdef ENABLE_FEAT_F4HWN
+				if(gBackLight)
+				{
+					gSubMenuSelection = gBacklightTimeOriginal;
+				}
+				else
+				{
+					gSubMenuSelection = gEeprom.BACKLIGHT_TIME;
+				}
+			#else
+				gSubMenuSelection = gEeprom.BACKLIGHT_TIME;
+			#endif
 			break;
 
 		case MENU_ABR_MIN:
diff --git a/bitmaps.c b/bitmaps.c
index d6b3185..e9f9e17 100644
--- a/bitmaps.c
+++ b/bitmaps.c
@@ -44,9 +44,8 @@ const uint8_t gFontKeyLock[1][8] =
 	{0x7c, 0x46, 0x45, 0x45, 0x45, 0x45, 0x46, 0x7c}
 };
 
-const uint8_t gFontScanAll[10] =
+const uint8_t gFontScanAll[9] =
 {
-	0b00000000,
 	0b00111110,
 	0b01000001,
 	0b01000001,
@@ -58,12 +57,18 @@ const uint8_t gFontScanAll[10] =
 	0b00111110
 };
 
-/*
-const uint8_t gFontF[1][7] =
+const uint8_t gFontLight[9] =
 {
-	{0x7f, 0x7f, 0x41, 0x75, 0x75, 0x7f, 0x7f},
+	0b00001100,
+	0b00010010,
+	0b00100001,
+	0b01101101,
+	0b01111001,
+	0b01101101,
+	0b00100001,
+	0b00010010,
+	0b00001100,
 };
-*/
 
 const uint8_t gFontXB[2][6] =
 {	// "XB"
diff --git a/bitmaps.h b/bitmaps.h
index 8db1421..667823a 100644
--- a/bitmaps.h
+++ b/bitmaps.h
@@ -11,10 +11,9 @@ extern const uint8_t gFontPttOnePush[2][6];
 extern const uint8_t gFontPttClassic[2][6];
 extern const uint8_t gFontFM[2][6];
 extern const uint8_t gFontKeyLock[1][8];
-extern const uint8_t gFontScanAll[10];
-/*
-extern const uint8_t gFontF[1][7];
-*/
+extern const uint8_t gFontScanAll[9];
+extern const uint8_t gFontLight[9];
+
 extern const uint8_t gFontXB[2][6];
 extern const uint8_t gFontMO[2][6];
 extern const uint8_t gFontDWR[3][6];
diff --git a/compile-with-docker.sh b/compile-with-docker.sh
index a51ddf8..f78f5ff 100755
--- a/compile-with-docker.sh
+++ b/compile-with-docker.sh
@@ -3,4 +3,4 @@
 IMAGE_NAME="uvk5"
 
 docker build -t $IMAGE_NAME .
-docker run --rm -v "${PWD}/compiled-firmware:/app/compiled-firmware" $IMAGE_NAME /bin/bash -c "cd /app && make && cp firmware* compiled-firmware/"
\ No newline at end of file
+docker run --rm -v "${PWD}/compiled-firmware:/app/compiled-firmware" $IMAGE_NAME /bin/bash -c "cd /app && make && cp f4hwn* compiled-firmware/"
\ No newline at end of file
diff --git a/driver/backlight.c b/driver/backlight.c
index 8705a01..4b0cfde 100644
--- a/driver/backlight.c
+++ b/driver/backlight.c
@@ -24,6 +24,7 @@
 #ifdef ENABLE_FEAT_F4HWN
 	#include "driver/system.h"
 	#include "audio.h"
+	#include "misc.h"
 #endif
 
 // this is decremented once every 500ms
@@ -57,32 +58,45 @@ void BACKLIGHT_InitHardware()
 		0;
 }
 
+static void BACKLIGHT_Sound(void)
+{
+	if (gEeprom.POWER_ON_DISPLAY_MODE == POWER_ON_DISPLAY_MODE_SOUND || gEeprom.POWER_ON_DISPLAY_MODE == POWER_ON_DISPLAY_MODE_ALL)
+	{
+		AUDIO_PlayBeep(BEEP_880HZ_60MS_TRIPLE_BEEP);
+		AUDIO_PlayBeep(BEEP_880HZ_60MS_TRIPLE_BEEP);
+		gK5startup = false;
+	}
+}
+
+
 void BACKLIGHT_TurnOn(void)
 {
+	#ifdef ENABLE_FEAT_F4HWN
+		gBacklightBrightnessOld = BACKLIGHT_GetBrightness();
+	#endif
+
 	if (gEeprom.BACKLIGHT_TIME == 0) {
 		BACKLIGHT_TurnOff();
+		#ifdef ENABLE_FEAT_F4HWN
+			if(gK5startup == true) 
+			{
+				BACKLIGHT_Sound();
+			}
+		#endif
 		return;
 	}
 
 	backlightOn = true;
 
 #ifdef ENABLE_FEAT_F4HWN
-	static bool k5Startup = true;
-	
-	if(k5Startup == true) {
+	if(gK5startup == true) {
 		for(uint8_t i = 0; i <= gEeprom.BACKLIGHT_MAX; i++)
 		{
 			BACKLIGHT_SetBrightness(i);
 			SYSTEM_DelayMs(50);
 		}
 
-		if (gEeprom.POWER_ON_DISPLAY_MODE == POWER_ON_DISPLAY_MODE_SOUND || gEeprom.POWER_ON_DISPLAY_MODE == POWER_ON_DISPLAY_MODE_ALL)
-		{
-			AUDIO_PlayBeep(BEEP_880HZ_60MS_TRIPLE_BEEP);
-			AUDIO_PlayBeep(BEEP_880HZ_60MS_TRIPLE_BEEP);
-		}
-	
-		k5Startup = false;
+		BACKLIGHT_Sound();
 	}
 	else
 	{
diff --git a/misc.c b/misc.c
index 9d34549..6640a34 100644
--- a/misc.c
+++ b/misc.c
@@ -276,7 +276,10 @@ uint8_t           gIsLocked = 0xFF;
 
 
 #ifdef ENABLE_FEAT_F4HWN
-	bool          gPttOnePush = true;
+	bool          gK5startup = true;
+	bool          gBackLight = false;
+	uint8_t       gBacklightTimeOriginal;
+	uint8_t       gBacklightBrightnessOld;
 	uint8_t       gPttOnePushCounter = 0;
 	uint32_t      gBlinkCounter = 0;
 #endif
diff --git a/misc.h b/misc.h
index 7ed63c6..fa22619 100644
--- a/misc.h
+++ b/misc.h
@@ -343,6 +343,10 @@ extern uint8_t               gIsLocked;
 extern volatile uint8_t      boot_counter_10ms;
 
 #ifdef ENABLE_FEAT_F4HWN
+	extern bool                  gK5startup;
+	extern bool                  gBackLight;
+	extern uint8_t               gBacklightTimeOriginal;
+	extern uint8_t               gBacklightBrightnessOld;
 	extern uint8_t               gPttOnePushCounter;
 	extern uint32_t              gBlinkCounter;
 #endif
diff --git a/settings.c b/settings.c
index 6dd46fb..2481cb5 100644
--- a/settings.c
+++ b/settings.c
@@ -528,7 +528,20 @@ void SETTINGS_SaveSettings(void)
 	State[2] = gEeprom.CROSS_BAND_RX_TX;
 	State[3] = gEeprom.BATTERY_SAVE;
 	State[4] = gEeprom.DUAL_WATCH;
-	State[5] = gEeprom.BACKLIGHT_TIME;
+
+	#ifdef ENABLE_FEAT_F4HWN
+		if(gBackLight)
+		{
+			State[5] = gBacklightTimeOriginal;
+		}
+		else
+		{
+			State[5] = gEeprom.BACKLIGHT_TIME;
+		}
+	#else
+		State[5] = gEeprom.BACKLIGHT_TIME;
+	#endif
+
 	State[6] = gEeprom.TAIL_TONE_ELIMINATION;
 	State[7] = gEeprom.VFO_OPEN;
 	EEPROM_WriteBuffer(0x0E78, State);
diff --git a/settings.h b/settings.h
index d0d6b97..6ae4e87 100644
--- a/settings.h
+++ b/settings.h
@@ -99,6 +99,7 @@ enum ACTION_OPT_t {
 	ACTION_OPT_RXMODE,
 	ACTION_OPT_PTT,
 	ACTION_OPT_WN,
+	ACTION_OPT_BACKLIGHT,
 #endif
 	ACTION_OPT_LEN
 };
diff --git a/ui/helper.c b/ui/helper.c
index 47b470b..e462970 100644
--- a/ui/helper.c
+++ b/ui/helper.c
@@ -199,6 +199,7 @@ static void sort(int16_t *a, int16_t *b)
 }
 
 #ifdef ENABLE_FEAT_F4HWN
+	/*
 	void UI_DrawLineDottedBuffer(uint8_t (*buffer)[128], int16_t x1, int16_t y1, int16_t x2, int16_t y2, bool black)
 	{
 		if(x2==x1) {
@@ -218,6 +219,7 @@ static void sort(int16_t *a, int16_t *b)
 			}
 		}
 	}
+	*/
 
 	void PutPixel(uint8_t x, uint8_t y, bool fill) {
 	  UI_DrawPixelBuffer(gFrameBuffer, x, y, fill);
diff --git a/ui/helper.h b/ui/helper.h
index b90afc6..294c744 100644
--- a/ui/helper.h
+++ b/ui/helper.h
@@ -33,7 +33,7 @@ void UI_DisplayPopup(const char *string);
 
 void UI_DrawPixelBuffer(uint8_t (*buffer)[128], uint8_t x, uint8_t y, bool black);
 #ifdef ENABLE_FEAT_F4HWN
-	void UI_DrawLineDottedBuffer(uint8_t (*buffer)[128], int16_t x1, int16_t y1, int16_t x2, int16_t y2, bool black);
+	//void UI_DrawLineDottedBuffer(uint8_t (*buffer)[128], int16_t x1, int16_t y1, int16_t x2, int16_t y2, bool black);
 	void PutPixel(uint8_t x, uint8_t y, bool fill);
 	void PutPixelStatus(uint8_t x, uint8_t y, bool fill);
 	void GUI_DisplaySmallest(const char *pString, uint8_t x, uint8_t y, bool statusbar, bool fill);
diff --git a/ui/main.c b/ui/main.c
index 84124df..fd77268 100644
--- a/ui/main.c
+++ b/ui/main.c
@@ -45,10 +45,12 @@
 center_line_t center_line = CENTER_LINE_NONE;
 
 #ifdef ENABLE_FEAT_F4HWN
-	static bool RxBlink;
+	static int8_t RxBlink;
 	static int8_t RxBlinkLed = 0;
 	static int8_t RxBlinkLedCounter;
 	static int8_t RxLine;
+	static uint32_t RxOnVfofrequency;
+
 	bool isMainOnlyInputDTMF = false;
 
 	static bool isMainOnly(bool checkGui)
@@ -264,6 +266,7 @@ void DisplayRSSIBar(const bool now)
 	const unsigned int bar_x        = 2 + txt_width + 4;     // X coord of bar graph
 
 #ifdef ENABLE_FEAT_F4HWN
+	/*
 	const char empty[] = {
 		0b00000000,
 		0b00000000,
@@ -273,6 +276,7 @@ void DisplayRSSIBar(const bool now)
 		0b00000000,
 		0b00000000,
 	};
+	*/
 
 	unsigned int line;
 	if (isMainOnly(false))
@@ -284,28 +288,29 @@ void DisplayRSSIBar(const bool now)
 		line = 3;
 	}
 
-	char rx[4];
+	//char rx[4];
 	//sprintf(String, "%d", RxBlink);
 	//UI_PrintStringSmallBold(String, 80, 0, RxLine);
 
 	if(RxLine >= 0 && center_line != CENTER_LINE_IN_USE)
 	{
-		if(RxBlink == true)
+		switch(RxBlink)
 		{
-			sprintf(rx, "%s", "RX");
-			//UI_PrintStringSmallBold("RX", 14, 0, RxLine);
-			RxBlink = false;
+			case 0:
+				UI_PrintStringSmallBold("RX", 14, 0, RxLine);
+				break;
+			case 1:
+				UI_PrintStringSmallBold("RX", 14, 0, RxLine);
+				RxBlink = 2;
+				break;
+			case 2:
+				for (uint8_t i = 14; i < 30; i++)
+				{
+					gFrameBuffer[RxLine][i] = 0x00;
+				}
+				RxBlink = 1;
+				break;
 		}
-		else
-		{
-			sprintf(rx, "%s", "  ");
-			memcpy(gFrameBuffer[RxLine] + 14, &empty, ARRAY_SIZE(empty));
-			memcpy(gFrameBuffer[RxLine] + 21, &empty, ARRAY_SIZE(empty));
-
-			//UI_PrintStringSmallBold("  ", 14, 0, RxLine);
-			RxBlink = true;
-		}
-		UI_PrintStringSmallBold(rx, 14, 0, RxLine);
 		ST7565_BlitLine(RxLine);
 	}
 #else
@@ -646,21 +651,29 @@ void UI_DisplayMain(void)
 			if(gScanRangeStart) {
 
 #ifdef ENABLE_FEAT_F4HWN
-				uint8_t shift = 0;
+				//if(IS_FREQ_CHANNEL(gEeprom.ScreenChannel[0]) && IS_FREQ_CHANNEL(gEeprom.ScreenChannel[1])) {
+				if(IS_FREQ_CHANNEL(gEeprom.ScreenChannel[activeTxVFO])) {
 
-				if (isMainOnly(false))
-				{
-					shift = 3;
+					uint8_t shift = 0;
+
+					if (isMainOnly(false))
+					{
+						shift = 3;
+					}
+
+					UI_PrintString("ScnRng", 5, 0, line + shift, 8);
+					sprintf(String, "%3u.%05u", gScanRangeStart / 100000, gScanRangeStart % 100000);
+					UI_PrintStringSmallNormal(String, 56, 0, line + shift);
+					sprintf(String, "%3u.%05u", gScanRangeStop / 100000, gScanRangeStop % 100000);
+					UI_PrintStringSmallNormal(String, 56, 0, line + shift + 1);
+
+					if (!isMainOnly(false))
+						continue;
+				}
+				else
+				{
+					gScanRangeStart = 0;
 				}
-
-				UI_PrintString("ScnRng", 5, 0, line + shift, 8);
-				sprintf(String, "%3u.%05u", gScanRangeStart / 100000, gScanRangeStart % 100000);
-				UI_PrintStringSmallNormal(String, 56, 0, line + shift);
-				sprintf(String, "%3u.%05u", gScanRangeStop / 100000, gScanRangeStop % 100000);
-				UI_PrintStringSmallNormal(String, 56, 0, line + shift + 1);
-
-				if (!isMainOnly(false))
-					continue;
 #else
 				UI_PrintString("ScnRng", 5, 0, line, 8);
 				sprintf(String, "%3u.%05u", gScanRangeStart / 100000, gScanRangeStart % 100000);
@@ -745,6 +758,8 @@ void UI_DisplayMain(void)
 				memcpy(p_line0 + 0, BITMAP_VFO_NotDefault, sizeof(BITMAP_VFO_NotDefault));
 		}
 
+		uint32_t frequency = gEeprom.VfoInfo[vfo_num].pRX->Frequency;
+
 		if (gCurrentFunction == FUNCTION_TRANSMIT)
 		{	// transmitting
 
@@ -768,14 +783,15 @@ void UI_DisplayMain(void)
 #ifdef ENABLE_FEAT_F4HWN
 				RxBlinkLed = 1;
 				RxBlinkLedCounter = 0;
+				RxLine = line;
+				RxOnVfofrequency = frequency;
 				if(!isMainVFO)
 				{
-					RxLine = line;
+					RxBlink = 1;
 				}
 				else
 				{
-					RxLine = -1;
-					UI_PrintStringSmallBold("RX", 14, 0, line);
+					RxBlink = 0;
 				}
 #else
 				UI_PrintStringSmallBold("RX", 14, 0, line);
@@ -784,6 +800,12 @@ void UI_DisplayMain(void)
 #ifdef ENABLE_FEAT_F4HWN
 			else
 			{
+				if(RxOnVfofrequency == frequency && !isMainOnly(false))
+				{
+					UI_PrintStringSmallNormal(">>", 14, 0, line);
+					//memcpy(p_line0 + 14, BITMAP_VFO_Default, sizeof(BITMAP_VFO_Default));
+				}
+
 				if(RxBlinkLed == 1)
 					RxBlinkLed = 2;
 			}
@@ -833,9 +855,6 @@ void UI_DisplayMain(void)
 				state = VFO_STATE_ALARM;
 		}
 #endif
-
-		uint32_t frequency = gEeprom.VfoInfo[vfo_num].pRX->Frequency;
-
 		if (state != VFO_STATE_NORMAL)
 		{
 			if (state < ARRAY_SIZE(VfoStateStr))
diff --git a/ui/menu.c b/ui/menu.c
index 56d72a6..102f2e8 100644
--- a/ui/menu.c
+++ b/ui/menu.c
@@ -469,7 +469,12 @@ void UI_DisplayMenu(void)
 
 #ifdef ENABLE_FEAT_F4HWN
 	UI_DrawLineBuffer(gFrameBuffer, 50, 0, 50, 55, 1); // Be ware, status zone = 8 lines, the rest = 56 ->total 64
-	UI_DrawLineDottedBuffer(gFrameBuffer, 0, 46, 50, 46, 1);
+	//UI_DrawLineDottedBuffer(gFrameBuffer, 0, 46, 50, 46, 1);
+
+	for (uint8_t i = 0; i < 50; i += 2)
+	{
+		gFrameBuffer[5][i] = 0x40;
+	}
 #endif
 
 #ifndef ENABLE_CUSTOM_MENU_LAYOUT
diff --git a/ui/status.c b/ui/status.c
index b267d37..6c4ea3f 100644
--- a/ui/status.c
+++ b/ui/status.c
@@ -160,11 +160,6 @@ void UI_DisplayStatus()
 		x1 = x;
 	}
 	else if (gWasFKeyPressed) {
-		/*
-		memcpy(line + x, gFontF, sizeof(gFontF));
-		x += sizeof(gFontF);
-		*/
-
 		UI_PrintStringSmallBufferNormal("F", line + x + 1);
 		x += sizeof(gFontKeyLock);
 		
@@ -174,6 +169,12 @@ void UI_DisplayStatus()
 		}
 		x1 = x;
 	}
+	else if(gBackLight)
+	{
+		memcpy(line + x + 1, gFontLight, sizeof(gFontLight));
+		x += sizeof(gFontLight);
+		x1 = x;
+	}
 
 	{	// battery voltage or percentage
 		char         s[8] = "";
diff --git a/ui/welcome.c b/ui/welcome.c
index c6fd7f6..93f694b 100644
--- a/ui/welcome.c
+++ b/ui/welcome.c
@@ -55,8 +55,8 @@ void UI_DisplayWelcome(void)
 	UI_DisplayClear();
 
 #ifdef ENABLE_FEAT_F4HWN
-	ST7565_BlitStatusLine();  // blank status line
-	ST7565_BlitFullScreen();
+	//ST7565_BlitStatusLine();  // blank status line
+	//ST7565_BlitFullScreen();
 
 	if (gEeprom.POWER_ON_DISPLAY_MODE == POWER_ON_DISPLAY_MODE_NONE || gEeprom.POWER_ON_DISPLAY_MODE == POWER_ON_DISPLAY_MODE_SOUND) {
 		ST7565_FillScreen(0x00);
@@ -105,13 +105,16 @@ void UI_DisplayWelcome(void)
 #ifdef ENABLE_FEAT_F4HWN
 		UI_PrintStringSmallNormal(Version, 0, 128, 4);
 
+		for (uint8_t i = 0; i < 128; i++)
+		{
+			gFrameBuffer[3][i] ^= 0x80;
+		}
+
 		for (uint8_t i = 18; i < 110; i++)
 		{
 			gFrameBuffer[4][i] ^= 0xFF;
 		}
 
-		UI_DrawLineBuffer(gFrameBuffer, 0, 31, 126, 31, 1);
-
 		UI_PrintStringSmallNormal(Based, 0, 127, 5);
 		UI_PrintStringSmallNormal(Credits, 0, 127, 6);
 #else