diff --git a/firmware/application/m4_startup.cpp b/firmware/application/m4_startup.cpp
index 59fc511a1..0e493f1b7 100644
--- a/firmware/application/m4_startup.cpp
+++ b/firmware/application/m4_startup.cpp
@@ -55,6 +55,7 @@ int m4_load_image(void) {
 	uint32_t mod_size;
 	UINT bw;
 	uint8_t i;
+	uint16_t cnt;
 	char md5sum[16];
 	FILINFO modinfo;
 	FIL modfile;
@@ -77,9 +78,11 @@ int m4_load_image(void) {
 				f_lseek(&modfile, 6);
 				f_read(&modfile, &mod_size, 4, &bw);
 				f_lseek(&modfile, 256);
-				f_read(&modfile, reinterpret_cast<void*>(portapack::memory::map::m4_code.base()), mod_size, &bw);
-				LPC_RGU->RESET_CTRL[0] = (1 << 13);
+				// For some reason, f_read > 512 bytes at once crashes everything... :/
+				for (cnt=0;cnt<256;cnt++)
+					f_read(&modfile, reinterpret_cast<void*>(portapack::memory::map::m4_code.base()+(cnt*256)), 256, &bw);
 				f_close(&modfile);
+				LPC_RGU->RESET_CTRL[0] = (1 << 13);
 				return 1;
 			}
 			f_close(&modfile);
diff --git a/firmware/application/ui_lcr.cpp b/firmware/application/ui_lcr.cpp
index d2d9e64b4..098095d0a 100644
--- a/firmware/application/ui_lcr.cpp
+++ b/firmware/application/ui_lcr.cpp
@@ -290,16 +290,17 @@ LCRView::LCRView(
 		memcpy(shared_memory.lcrdata, lcrframe_f, 256);
 		
 		shared_memory.afsk_transmit_done = false;
-		shared_memory.afsk_repeat = ((portapack::persistent_memory::afsk_config() >> 8) & 0xFF);
+		shared_memory.afsk_repeat = (portapack::persistent_memory::afsk_config() >> 8) & 0xFF;
 
 		message_map.register_handler(Message::ID::TXDone,
 			[this,&transmitter_model](Message* const p) {
+				char str[8];
 				const auto message = static_cast<const TXDoneMessage*>(p);
 				if (message->n > 0) {
-					char str[8];
+					text_status.set("       ");
 					strcpy(str, to_string_dec_int(message->n).c_str());
 					strcat(str, "/");
-					strcat(str, to_string_dec_int(shared_memory.afsk_repeat).c_str());
+					strcat(str, to_string_dec_int((portapack::persistent_memory::afsk_config() >> 8) & 0xFF).c_str());
 					text_status.set(str);
 				} else {
 					text_status.set("Done ! ");
diff --git a/firmware/application/ui_loadmodule.cpp b/firmware/application/ui_loadmodule.cpp
index d5dafdab1..36569ed9d 100644
--- a/firmware/application/ui_loadmodule.cpp
+++ b/firmware/application/ui_loadmodule.cpp
@@ -26,7 +26,7 @@
 #include "ff.h"
 #include "hackrf_gpio.hpp"
 #include "portapack.hpp"
-
+#include "portapack_shared_memory.hpp"
 #include "hackrf_hal.hpp"
 
 #include <cstring>
@@ -50,11 +50,39 @@ void LoadModuleView::on_hide() {
 }
 
 void LoadModuleView::on_show() {
+	// Ask for MD5 signature and compare
+	ModuleIDMessage message;
+	auto& message_map = context().message_map();
+	
+	message_map.unregister_handler(Message::ID::ModuleID);
+	
+	message_map.register_handler(Message::ID::ModuleID,
+		[this](Message* const p) {
+			uint8_t c;
+			const auto message = static_cast<const ModuleIDMessage*>(p);
+			if (message->query == false) {	// Shouldn't be needed
+				for (c=0;c<16;c++) {
+					if (message->md5_signature[c] != _hash[c]) break;
+				}
+				if (c == 16) {
+					text_info.set("Module already loaded :)");
+					_mod_loaded = true;
+				} else {
+					loadmodule();
+				}
+			}
+		}
+	);
+	
+	message.query = true;
+	shared_memory.baseband_queue.push(message);
+}
+
+void LoadModuleView::loadmodule() {
 	auto& message_map = context().message_map();
 	message_map.register_handler(Message::ID::ReadyForSwitch,
 		[this](Message* const p) {
 			(void)p;
-			// const auto message = static_cast<const ReadyForSwitchMessage*>(p);
 			if (m4_load_image()) {
 				text_info.set("Module loaded :)");
 				_mod_loaded = true;
diff --git a/firmware/application/ui_loadmodule.hpp b/firmware/application/ui_loadmodule.hpp
index f3bc99c3b..ab2dfc67d 100644
--- a/firmware/application/ui_loadmodule.hpp
+++ b/firmware/application/ui_loadmodule.hpp
@@ -32,6 +32,7 @@ namespace ui {
 class LoadModuleView : public View {
 public:
 	LoadModuleView(NavigationView& nav, const char * hash, View* new_view);
+	void loadmodule();
 	
 	void on_show() override;
 	void on_hide() override;
diff --git a/firmware/application/ui_navigation.cpp b/firmware/application/ui_navigation.cpp
index 49a9a92f7..35021536c 100644
--- a/firmware/application/ui_navigation.cpp
+++ b/firmware/application/ui_navigation.cpp
@@ -111,19 +111,19 @@ void NavigationView::focus() {
 /* SystemMenuView ********************************************************/
 
 SystemMenuView::SystemMenuView(NavigationView& nav) {
-	add_items<10>({ {
+	add_items<11>({ {
 		{ "Play dead", ui::Color::red(),  		[&nav](){ nav.push(new PlayDeadView 	  { nav, false }); } },
-		{ "Receiver", ui::Color::cyan(), 		[&nav](){ nav.push(new ReceiverView 	  { nav, receiver_model }); } },
+		{ "Receiver", ui::Color::cyan(), 		[&nav](){ nav.push(new LoadModuleView { nav, md5_baseband, new ReceiverView { nav, receiver_model }}); } },
 		//{ "Nordic/BTLE RX", ui::Color::cyan(),	[&nav](){ nav.push(new NotImplementedView { nav }); } },
-		{ "Jammer", ui::Color::white(),   		[&nav](){ nav.push(new JammerView		  { nav, transmitter_model }); } },
+		{ "Jammer", ui::Color::white(),   		[&nav](){ nav.push(new LoadModuleView { nav, md5_baseband, new JammerView { nav, transmitter_model }}); } },
 		//{ "Audio file TX", ui::Color::white(),	[&nav](){ nav.push(new NotImplementedView { nav }); } },
 		//{ "Encoder TX", ui::Color::green(),		[&nav](){ nav.push(new NotImplementedView { nav }); } },
-		{ "Whistle", ui::Color::purple(),  		[&nav](){ nav.push(new WhistleView 		  { nav, transmitter_model }); } },
-		//{ "SIGFOX RX", ui::Color::orange(),  	[&nav](){ nav.push(new SIGFRXView 		  { nav, receiver_model }); } },
-		//{ "RDS TX", ui::Color::yellow(),  		[&nav](){ nav.push(new LoadModuleView { nav, md5_baseband_tx, new RDSView { nav, transmitter_model }}; } },
-		{ "Xylos TX", ui::Color::orange(),  		[&nav](){ nav.push(new XylosView         { nav, transmitter_model }); } },
-		//{ "AFSK RX", ui::Color::cyan(),  		[&nav](){ nav.push(new AFSKRXView         { nav, receiver_model }); } },
-		{ "TEDI/LCR TX", ui::Color::yellow(),  	[&nav](){ nav.push(new LCRView            { nav, transmitter_model }); } },
+		{ "Whistle", ui::Color::purple(),  		[&nav](){ nav.push(new LoadModuleView { nav, md5_baseband, new WhistleView { nav, transmitter_model }}); } },
+		//{ "SIGFOX RX", ui::Color::orange(),  	[&nav](){ nav.push(new LoadModuleView { nav, md5_baseband, new SIGFRXView 		  { nav, receiver_model }}); } },
+		{ "RDS TX", ui::Color::yellow(),  		[&nav](){ nav.push(new LoadModuleView { nav, md5_baseband_tx, new RDSView { nav, transmitter_model }}); } },
+		{ "Xylos TX", ui::Color::orange(),  	[&nav](){ nav.push(new LoadModuleView { nav, md5_baseband_tx, new XylosView	{ nav, transmitter_model }}); } },
+		//{ "AFSK RX", ui::Color::cyan(),  		[&nav](){ nav.push(new LoadModuleView { nav, md5_baseband, new AFSKRXView         { nav, receiver_model }}); } },
+		{ "TEDI/LCR TX", ui::Color::yellow(),  	[&nav](){ nav.push(new LoadModuleView { nav, md5_baseband_tx, new LCRView { nav, transmitter_model }}); } },
 		{ "Setup", ui::Color::white(),    		[&nav](){ nav.push(new SetupMenuView      { nav }); } },
 		{ "About", ui::Color::white(),    		[&nav](){ nav.push(new AboutView          { nav }); } },
 		{ "Debug", ui::Color::white(),    		[&nav](){ nav.push(new DebugMenuView      { nav }); } },
diff --git a/firmware/application/ui_xylos.cpp b/firmware/application/ui_xylos.cpp
index 1083b615d..ef011df77 100644
--- a/firmware/application/ui_xylos.cpp
+++ b/firmware/application/ui_xylos.cpp
@@ -1,6 +1,7 @@
 /*
  * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
- *
+ * Copyright (C) 2016 Furrtek
+ * 
  * This file is part of PortaPack.
  *
  * This program is free software; you can redistribute it and/or modify
@@ -106,6 +107,8 @@ void XylosView::upd_message() {
 		else
 			ccirmessage[c] -= 0x30;
 	}
+	
+	ccirmessage[20] = 0xFF;
 }
 
 void XylosView::journuit() {
diff --git a/firmware/application/ui_xylos.hpp b/firmware/application/ui_xylos.hpp
index 93b560c4d..59525eaec 100644
--- a/firmware/application/ui_xylos.hpp
+++ b/firmware/application/ui_xylos.hpp
@@ -1,6 +1,7 @@
 /*
  * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
- *
+ * Copyright (C) 2016 Furrtek
+ * 
  * This file is part of PortaPack.
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/firmware/baseband-tx.bin b/firmware/baseband-tx.bin
index cd98095ec..8b0ee7fc9 100644
Binary files a/firmware/baseband-tx.bin and b/firmware/baseband-tx.bin differ
diff --git a/firmware/baseband-tx/main.cpp b/firmware/baseband-tx/main.cpp
index 30ce1c29d..5ec8e4f97 100755
--- a/firmware/baseband-tx/main.cpp
+++ b/firmware/baseband-tx/main.cpp
@@ -485,7 +485,6 @@ void wait_for_switch(void) {
 	ReadyForSwitchMessage message;
 	shared_memory.application_queue.push(message);
 	(*loop_ptr)();
-	return;
 }
 		
 int main(void) {
@@ -496,6 +495,18 @@ int main(void) {
 
 	EventDispatcher event_dispatcher;
 	auto& message_handlers = event_dispatcher.message_handlers();
+	
+	message_handlers.register_handler(Message::ID::ModuleID,
+		[&message_handlers](Message* p) {
+			ModuleIDMessage reply;
+			auto message = static_cast<ModuleIDMessage*>(p);
+			if (message->query == true) {	// Shouldn't be needed
+				memcpy(reply.md5_signature, (const void *)(0x10087FF0), 16);
+				reply.query = false;
+				shared_memory.application_queue.push(reply);
+			}
+		}
+	);
 
 	message_handlers.register_handler(Message::ID::BasebandConfiguration,
 		[&message_handlers](const Message* const p) {
@@ -538,7 +549,7 @@ int main(void) {
 					baseband_thread.baseband_processor = new XylosProcessor();
 					break;
 					
-				case 0xFF:
+				case SWITCH:
 					wait_for_switch();
 
 				default:
diff --git a/firmware/baseband-tx/proc_xylos.cpp b/firmware/baseband-tx/proc_xylos.cpp
index b97089d30..f0528ddbe 100644
--- a/firmware/baseband-tx/proc_xylos.cpp
+++ b/firmware/baseband-tx/proc_xylos.cpp
@@ -1,7 +1,7 @@
 /*
- * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
  * Copyright (C) 2016 Furrtek
- *
+ * 
  * This file is part of PortaPack.
  *
  * This program is free software; you can redistribute it and/or modify
@@ -45,11 +45,10 @@ void XylosProcessor::execute(buffer_c8_t buffer) {
 					digit = shared_memory.xylosdata[byte_pos++];
 				}
 					
-				if (!digit) {
+				if (digit == 0xFF) {
 					message.n = 25;	// End of message code
 					shared_memory.xylos_transmit_done = true;
 					shared_memory.application_queue.push(message);
-					digit = 0;
 				}
 				
 				sample_count = 0;
diff --git a/firmware/baseband-tx/proc_xylos.hpp b/firmware/baseband-tx/proc_xylos.hpp
index a9e2458dc..933d3cb4c 100644
--- a/firmware/baseband-tx/proc_xylos.hpp
+++ b/firmware/baseband-tx/proc_xylos.hpp
@@ -1,7 +1,7 @@
 /*
- * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
  * Copyright (C) 2016 Furrtek
- *
+ * 
  * This file is part of PortaPack.
  *
  * This program is free software; you can redistribute it and/or modify
diff --git a/firmware/baseband.bin b/firmware/baseband.bin
index 99a0ae2d3..36ce9db2f 100644
Binary files a/firmware/baseband.bin and b/firmware/baseband.bin differ
diff --git a/firmware/baseband/main.cpp b/firmware/baseband/main.cpp
index bdf520b56..439b38313 100755
--- a/firmware/baseband/main.cpp
+++ b/firmware/baseband/main.cpp
@@ -348,7 +348,7 @@ private:
 
 const auto baseband_buffer =
 	new std::array<baseband::sample_t, 8192>();
-	
+
 char ram_loop[32];
 typedef int (*fn_ptr)(void);
 fn_ptr loop_ptr;
@@ -363,7 +363,6 @@ void wait_for_switch(void) {
 	ReadyForSwitchMessage message;
 	shared_memory.application_queue.push(message);
 	(*loop_ptr)();
-	return;
 }
 		
 int main(void) {
@@ -374,6 +373,18 @@ int main(void) {
 
 	EventDispatcher event_dispatcher;
 	auto& message_handlers = event_dispatcher.message_handlers();
+	
+	message_handlers.register_handler(Message::ID::ModuleID,
+		[&message_handlers](Message* p) {
+			ModuleIDMessage reply;
+			auto message = static_cast<ModuleIDMessage*>(p);
+			if (message->query == true) {	// Shouldn't be needed
+				memcpy(reply.md5_signature, (const void *)(0x10087FF0), 16);
+				reply.query = false;
+				shared_memory.application_queue.push(reply);
+			}
+		}
+	);
 
 	message_handlers.register_handler(Message::ID::BasebandConfiguration,
 		[&message_handlers](const Message* const p) {
diff --git a/firmware/chibios-portapack/os/ports/GCC/ARMCMx/LPC43xx_M0/ld/LPC43xx_M0.ld b/firmware/chibios-portapack/os/ports/GCC/ARMCMx/LPC43xx_M0/ld/LPC43xx_M0.ld
index 6331b9bd1..249511821 100755
--- a/firmware/chibios-portapack/os/ports/GCC/ARMCMx/LPC43xx_M0/ld/LPC43xx_M0.ld
+++ b/firmware/chibios-portapack/os/ports/GCC/ARMCMx/LPC43xx_M0/ld/LPC43xx_M0.ld
@@ -23,7 +23,7 @@ __process_stack_size__  = 0x1000;   /* main() stack */
 
 MEMORY
 {
-    flash   : org = 0x00000000, len = 128k  /* SPIFI flash @ 0x140????? */
+    flash   : org = 0x00000000, len = 256k  /* SPIFI flash @ 0x140????? */
     ram     : org = 0x20000000, len = 64k   /* AHB SRAM @ 0x20000000 */
 }
 
diff --git a/firmware/chibios-portapack/os/ports/GCC/ARMCMx/LPC43xx_M4/ld/LPC43xx_M4.ld b/firmware/chibios-portapack/os/ports/GCC/ARMCMx/LPC43xx_M4/ld/LPC43xx_M4.ld
index df7b22d14..6a9bdea90 100755
--- a/firmware/chibios-portapack/os/ports/GCC/ARMCMx/LPC43xx_M4/ld/LPC43xx_M4.ld
+++ b/firmware/chibios-portapack/os/ports/GCC/ARMCMx/LPC43xx_M4/ld/LPC43xx_M4.ld
@@ -23,7 +23,7 @@ __process_stack_size__  = 0x1000;   /* main() stack */
 
 MEMORY
 {
-    flash   : org = 0x00000000, len = 32k   /* Local SRAM @ 0x10080000 */
+    flash   : org = 0x00000000, len = 32752	/* Local SRAM @ 0x10080000 */
     ram     : org = 0x10000000, len = 96k   /* Local SRAM @ 0x10000000 */
 }
 
diff --git a/firmware/common/message.hpp b/firmware/common/message.hpp
index 77181b94f..e45512c53 100644
--- a/firmware/common/message.hpp
+++ b/firmware/common/message.hpp
@@ -51,6 +51,7 @@ public:
 		Retune = 11,
 		ReadyForSwitch = 12,
 		AFSKData = 13,
+		ModuleID = 14,
 		MAX
 	};
 
@@ -297,6 +298,17 @@ public:
 	int n = 0;
 };
 
+class ModuleIDMessage : public Message {
+public:
+	ModuleIDMessage(
+	) : Message { ID::ModuleID }
+	{
+	}
+	
+	bool query;
+	char md5_signature[16];
+};
+
 class ReadyForSwitchMessage : public Message {
 public:
 	ReadyForSwitchMessage(
diff --git a/firmware/common/modules.h b/firmware/common/modules.h
index 26dd39776..36889193f 100644
--- a/firmware/common/modules.h
+++ b/firmware/common/modules.h
@@ -1,2 +1,2 @@
-const char md5_baseband[16] = {0x20,0xb7,0x1a,0x68,0x28,0xda,0xc9,0xb8,0x01,0xb0,0xbd,0x68,0x0d,0xd5,0xd6,0xa7,};
-const char md5_baseband_tx[16] = {0xe5,0x29,0xb9,0xf0,0x81,0x50,0x45,0x69,0x24,0xaf,0xdd,0x4e,0xdb,0xaf,0xd8,0x97,};
+const char md5_baseband[16] = {0xef,0xc2,0x85,0x1d,0x83,0x0d,0x5c,0x18,0x55,0x7b,0x80,0x75,0xc9,0x6a,0x54,0xe1,};
+const char md5_baseband_tx[16] = {0xad,0xc6,0x44,0x4e,0xf4,0xe1,0xb8,0xb2,0x29,0x52,0x1d,0x33,0x1f,0xda,0x5d,0xd6,};
diff --git a/firmware/portapack-h1-firmware.bin b/firmware/portapack-h1-firmware.bin
index 53acde85f..69c06fdf2 100644
Binary files a/firmware/portapack-h1-firmware.bin and b/firmware/portapack-h1-firmware.bin differ
diff --git a/firmware/tools/make_baseband_file.py b/firmware/tools/make_baseband_file.py
index 078db063b..7f7415699 100755
--- a/firmware/tools/make_baseband_file.py
+++ b/firmware/tools/make_baseband_file.py
@@ -1,6 +1,5 @@
 #!/usr/bin/env python
 
-#
 # Copyright (C) 2016 Furrtek
 #
 # This program is free software; you can redistribute it and/or modify
@@ -56,35 +55,59 @@ sys.argv = sys.argv[1:]
 
 # Format for module file:
 # Magic (4), Version (2), Length (4), Name (16), MD5 (16), Description (214)
-# Unpadded module binary...
+# Module binary...
+# MD5 (16)
 
 for args in sys.argv:
 	data = read_image(args + '/build/' + args + '.bin')
+	data_r = data
+	
+	# Magic bytes
 	info = 'PPM '
+	
+	# Version
 	info += struct.pack('H', 1)
+	
+	# Length
 	info += struct.pack('I', len(data))
+	
+	# Module name
 	name = read_image(args + '/name')
 	if len(name) > 16:
 		name = name[0:15]
 	pad_size = 16 - len(name)
 	name += (data_default_byte * pad_size)
 	info += name
+	
+	# Module MD5 footprint
 	m.update(data)
 	digest = m.digest()
 	pad_size = 16 - len(digest)
 	digest += (data_default_byte * pad_size)
 	info += digest
+	
+	# Module description
 	description = read_image(args + '/description')
 	if len(description) > 214:
 		description = description[0:213]
 	pad_size = 214 - len(description)
 	description += (data_default_byte * pad_size)
 	info += description
+	
+	# Padding
 	data = info + data
+	pad_size = (32768 + 256 - 16) - len(data)
+	data += (data_default_byte * pad_size)
+	data += digest
 	write_file(data, args + '.bin')
+	
+	# Add to modules.h
 	md5sum = ''
 	for byte in digest:
 		md5sum += '0x' + format(byte, '02x') + ','
 	h_data += 'const char md5_' + args.replace('-','_') + '[16] = {' + md5sum + '};\n'
+	
+	# Update original binary with MD5 footprint
+	write_file(data[256:(32768+256)], args + '/build/' + args + '.bin')
 
 write_file(h_data, 'common/modules.h')