diff --git a/radio/src/datastructs.h b/radio/src/datastructs.h
index f2c588182..9734656e0 100644
--- a/radio/src/datastructs.h
+++ b/radio/src/datastructs.h
@@ -476,7 +476,7 @@ PACK(struct ModuleData {
       uint8_t spare2:1;
       int8_t refreshRate;  // definition as framelength for ppm (* 5 + 225 = time in 1/10 ms)
     } sbus);
-    NOBACKUP(struct {
+    NOBACKUP(PACK(struct {
       uint8_t power:2;                  // 0=10 mW, 1=100 mW, 2=500 mW, 3=1W
       uint8_t external_antenna:1;       // false = internal antenna, true = external antenna
 #if defined(PCBHORUS)
@@ -497,7 +497,7 @@ PACK(struct ModuleData {
       NOBACKUP(inline void clearReceiverSlot(uint8_t receiver) {
         setReceiverSlot(receiver, 0);
       })
-    } pxx2);
+    }) pxx2);
   };
 
   // Helper functions to set both of the rfProto protocol at the same time
@@ -916,7 +916,12 @@ static inline void check_struct()
 
   CHKSIZE(LogicalSwitchData, 9);
   CHKSIZE(TelemetrySensor, 13);
-  CHKSIZE(ModuleData, 12);
+
+#if defined(PCBHORUS)
+  CHKSIZE(ModuleData, 9);
+#else
+  CHKSIZE(ModuleData, 6);
+#endif
 
   CHKSIZE(GVarData, 7);
 
@@ -943,7 +948,7 @@ static inline void check_struct()
   CHKSIZE(ModelData, 5188);
 #elif defined(PCBHORUS)
   CHKSIZE(RadioData, 855);
-  CHKSIZE(ModelData, 9777);
+  CHKSIZE(ModelData, 9771);
 #endif
 
 #undef CHKSIZE
diff --git a/radio/src/gui/128x64/menus.h b/radio/src/gui/128x64/menus.h
index 22b0fc206..3c3308b06 100644
--- a/radio/src/gui/128x64/menus.h
+++ b/radio/src/gui/128x64/menus.h
@@ -73,7 +73,6 @@ inline MenuHandlerFunc lastPopMenu()
 }
 
 void onMainViewMenu(const char * result);
-
 void menuFirstCalib(event_t event);
 void menuMainView(event_t event);
 void menuViewTelemetryFrsky(event_t event);
@@ -83,11 +82,9 @@ enum MenuRadioIndexes
 {
   MENU_RADIO_SETUP,
   CASE_SDCARD(MENU_RADIO_SD_MANAGER)
+  MENU_RADIO_TOOLS,
   MENU_RADIO_SPECIAL_FUNCTIONS,
   MENU_RADIO_TRAINER,
-#if defined(RADIO_SPECTRUM)
-  MENU_RADIO_SPECTRUM,
-#endif
   MENU_RADIO_HARDWARE,
   MENU_RADIO_VERSION,
   MENU_RADIO_PAGES_COUNT
@@ -101,17 +98,16 @@ void menuRadioVersion(event_t event);
 void menuRadioDiagKeys(event_t event);
 void menuRadioDiagAnalogs(event_t event);
 void menuRadioHardware(event_t event);
+void menuRadioTools(event_t event);
 void menuRadioSpectrum(event_t event);
 void menuRadioCalibration(event_t event);
 
 static const MenuHandlerFunc menuTabGeneral[]  = {
   menuRadioSetup,
   CASE_SDCARD(menuRadioSdManager)
+  menuRadioTools,
   menuRadioSpecialFunctions,
   menuRadioTrainer,
-#if defined(RADIO_SPECTRUM)
-  menuRadioSpectrum,
-#endif
   menuRadioHardware,
   menuRadioVersion
 };
diff --git a/radio/src/gui/128x64/radio_spectrum.cpp b/radio/src/gui/128x64/radio_spectrum.cpp
index 47a099b46..2fab450da 100644
--- a/radio/src/gui/128x64/radio_spectrum.cpp
+++ b/radio/src/gui/128x64/radio_spectrum.cpp
@@ -22,7 +22,7 @@
 
 void menuRadioSpectrum(event_t event)
 {
-  SIMPLE_MENU("SPECTRUM ANALYSER", menuTabGeneral, MENU_RADIO_SPECTRUM, 1);
+  SIMPLE_SUBMENU("SPECTRUM ANALYSER", 1);
 
   if (menuEvent) {
     INTERNAL_MODULE_OFF();
diff --git a/radio/src/gui/128x64/radio_tools.cpp b/radio/src/gui/128x64/radio_tools.cpp
new file mode 100644
index 000000000..55e772237
--- /dev/null
+++ b/radio/src/gui/128x64/radio_tools.cpp
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) OpenTX
+ *
+ * Based on code named
+ *   th9x - http://code.google.com/p/th9x
+ *   er9x - http://code.google.com/p/er9x
+ *   gruvin9x - http://code.google.com/p/gruvin9x
+ *
+ * License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include "opentx.h"
+
+void addRadioTool(uint8_t index, const char * label, void (* tool)(event_t event), event_t event)
+{
+  int8_t sub = menuVerticalPosition - HEADER_LINE;
+  LcdFlags attr = (sub == index ? INVERS : 0);
+  coord_t y = MENU_HEADER_HEIGHT + 1 + index * FH;
+  lcdDrawNumber(3, y, index + 1, LEADING0|LEFT, 2);
+  lcdDrawText(3*FW, y, label, (sub == index ? INVERS  : 0));
+  if (attr && s_editMode > 0) {
+    s_editMode = 0;
+    pushMenu(tool);
+  }
+}
+
+void menuRadioTools(event_t event)
+{
+  SIMPLE_MENU("TOOLS", menuTabGeneral, MENU_RADIO_TOOLS, HEADER_LINE + 1);
+
+  addRadioTool(0, "Spectrum Analyser", menuRadioSpectrum, event);
+
+}
\ No newline at end of file
diff --git a/radio/src/gui/480x272/bitmapbuffer.cpp b/radio/src/gui/480x272/bitmapbuffer.cpp
index 67fb457e4..ae38a8500 100644
--- a/radio/src/gui/480x272/bitmapbuffer.cpp
+++ b/radio/src/gui/480x272/bitmapbuffer.cpp
@@ -387,7 +387,7 @@ void BitmapBuffer::drawSizedText(coord_t x, coord_t y, const char * s, uint8_t l
 #if defined(BOOT)
     unsigned char c = *s;
 #else
-    unsigned char c = (flags & ZCHAR) ? idx2char(*s) : *s;
+    unsigned char c = (flags & ZCHAR) ? zchar2char(*s) : *s;
 #endif
     if (setpos) {
       pos = c;
diff --git a/radio/src/gui/480x272/lcd.cpp b/radio/src/gui/480x272/lcd.cpp
index 3d5fae358..a9f9075ab 100644
--- a/radio/src/gui/480x272/lcd.cpp
+++ b/radio/src/gui/480x272/lcd.cpp
@@ -130,7 +130,7 @@ int getTextWidth(const char * s, int len, LcdFlags flags)
   for (int i=0; len==0 || i<len; ++i) {
 
 #if !defined(BOOT)
-    char c = (flags & ZCHAR) ? idx2char(*s) : *s;
+    char c = (flags & ZCHAR) ? zchar2char(*s) : *s;
 #else
     char c = *s;
 #endif
diff --git a/radio/src/gui/480x272/model_setup.cpp b/radio/src/gui/480x272/model_setup.cpp
index 603ff9bf6..fd9930933 100644
--- a/radio/src/gui/480x272/model_setup.cpp
+++ b/radio/src/gui/480x272/model_setup.cpp
@@ -1215,11 +1215,11 @@ bool menuModelFailsafe(event_t event)
 
     if (menuVerticalPosition < sentModuleChannels(g_moduleIdx)) {
       if (s_editMode) {
-        g_model.moduleData[g_moduleIdx].failsafeChannels[menuVerticalPosition] = channelOutputs[menuVerticalPosition+channelStart];
+        g_model.failsafeChannels[menuVerticalPosition] = channelOutputs[menuVerticalPosition+channelStart];
         s_editMode = 0;
       }
       else {
-        int16_t & failsafe = g_model.moduleData[g_moduleIdx].failsafeChannels[menuVerticalPosition];
+        int16_t & failsafe = g_model.failsafeChannels[menuVerticalPosition];
         if (failsafe < FAILSAFE_CHANNEL_HOLD)
           failsafe = FAILSAFE_CHANNEL_HOLD;
         else if (failsafe == FAILSAFE_CHANNEL_HOLD)
@@ -1246,7 +1246,7 @@ bool menuModelFailsafe(event_t event)
       coord_t x = col*(LCD_W/2);
       const coord_t y = MENU_CONTENT_TOP - FH + line*(FH+2);
       const int32_t channelValue = channelOutputs[ch+channelStart];
-      int32_t failsafeValue = g_model.moduleData[g_moduleIdx].failsafeChannels[8*col+line];
+      int32_t failsafeValue = g_model.failsafeChannels[8*col+line];
 
       // Channel name if present, number if not
       if (g_model.limitData[ch+channelStart].name[0] != '\0') {
@@ -1267,7 +1267,7 @@ bool menuModelFailsafe(event_t event)
           }
           else {
             flags |= BLINK;
-            CHECK_INCDEC_MODELVAR(event, g_model.moduleData[g_moduleIdx].failsafeChannels[8*col+line], -lim, +lim);
+            CHECK_INCDEC_MODELVAR(event, g_model.failsafeChannels[8*col+line], -lim, +lim);
           }
         }
       }
diff --git a/radio/src/gui/480x272/radio_sdmanager.cpp b/radio/src/gui/480x272/radio_sdmanager.cpp
index 7206687b2..7bbe01c4f 100644
--- a/radio/src/gui/480x272/radio_sdmanager.cpp
+++ b/radio/src/gui/480x272/radio_sdmanager.cpp
@@ -19,6 +19,7 @@
  */
 
 #include <stdio.h>
+#include <io/frsky_device_firmware_update.h>
 #include "opentx.h"
 #include "storage/modelslist.h"
 
@@ -141,15 +142,18 @@ void onSdManagerMenu(const char * result)
   }
   else if (result == STR_FLASH_INTERNAL_MODULE) {
     getSelectionFullPath(lfn);
-    sportFlashDevice(INTERNAL_MODULE, lfn);
+    DeviceFirmwareUpdate device(INTERNAL_MODULE);
+    device.flashFile(lfn);
   }
   else if (result == STR_FLASH_EXTERNAL_MODULE) {
     getSelectionFullPath(lfn);
-    sportFlashDevice(EXTERNAL_MODULE, lfn);
+    DeviceFirmwareUpdate device(EXTERNAL_MODULE);
+    device.flashFile(lfn);
   }
   else if (result == STR_FLASH_EXTERNAL_DEVICE) {
     getSelectionFullPath(lfn);
-    sportFlashDevice(FLASHING_MODULE, lfn);
+    DeviceFirmwareUpdate device(FLASHING_MODULE);
+    device.flashFile(lfn);
   }
 #if defined(LUA)
   else if (result == STR_EXECUTE_FILE) {
diff --git a/radio/src/io/frsky_sport.h b/radio/src/io/frsky_sport.h
index e00e11784..d7d58c8b2 100644
--- a/radio/src/io/frsky_sport.h
+++ b/radio/src/io/frsky_sport.h
@@ -37,7 +37,6 @@ PACK(union SportTelemetryPacket
 
 bool isSportOutputBufferAvailable();
 void sportOutputPushPacket(SportTelemetryPacket * packet);
-void sportFlashDevice(ModuleIndex module, const char * filename);
 #endif
 
 #if defined(STM32)
diff --git a/radio/src/storage/conversions/CMakeLists.txt b/radio/src/storage/conversions/CMakeLists.txt
index 288eee42d..70e8dfccc 100644
--- a/radio/src/storage/conversions/CMakeLists.txt
+++ b/radio/src/storage/conversions/CMakeLists.txt
@@ -2,10 +2,14 @@ if(PCB STREQUAL X9D OR PCB STREQUAL X9DP OR PCB STREQUAL SKY9X)
   set(EEPROM_CONVERSIONS 216)
 endif()
 
-if(PCB STREQUAL X12S OR PCB STREQUAL X10 OR PCB STREQUAL X7 OR PCB STREQUAL XLITE)
+if(PCB STREQUAL X7 OR PCB STREQUAL XLITE)
   set(EEPROM_CONVERSIONS 218)
 endif()
 
+if(PCB STREQUAL X12S OR PCB STREQUAL X10)
+  # TODO set(EEPROM_CONVERSIONS 218)
+endif()
+
 if(EEPROM_CONVERSIONS)
   add_definitions(-DEEPROM_CONVERSIONS=${EEPROM_CONVERSIONS})
   set(SRC
diff --git a/radio/src/targets/horus/board.h b/radio/src/targets/horus/board.h
index 8fbe1be35..54531aaff 100644
--- a/radio/src/targets/horus/board.h
+++ b/radio/src/targets/horus/board.h
@@ -139,6 +139,16 @@ void delay_ms(uint32_t ms);
   #define IS_FIRMWARE_COMPATIBLE_WITH_BOARD() (!IS_HORUS_PROD())
 #endif
 
+// Hardware options
+PACK(typedef struct {
+#if NUM_PWMSTICKS > 0
+    uint8_t sticksPwmDisabled:1;
+#endif
+    uint8_t pxx2Enabled:1;
+}) HardwareOptions;
+
+extern HardwareOptions hardwareOptions;
+
 // SD driver
 #define BLOCK_SIZE                     512 /* Block Size in Bytes */
 #if !defined(SIMU) || defined(SIMU_DISKIO)
@@ -196,15 +206,6 @@ void SDRAM_Init(void);
 #define IS_INTERNAL_MODULE_ON()        (GPIO_ReadInputDataBit(INTMODULE_PWR_GPIO, INTMODULE_PWR_GPIO_PIN) == Bit_SET)
 #define IS_EXTERNAL_MODULE_ON()        (GPIO_ReadInputDataBit(EXTMODULE_PWR_GPIO, EXTMODULE_PWR_GPIO_PIN) == Bit_SET)
 
-PACK(typedef struct {
-#if NUM_PWMSTICKS > 0
-  uint8_t sticksPwmDisabled:1;
-#endif
-  uint8_t pxx2Enabled:1;
-}) HardwareOptions;
-
-extern HardwareOptions hardwareOptions;
-
 #if !defined(PXX2)
   #define IS_PXX2_INTERNAL_ENABLED()            (false)
   #define IS_PXX1_INTERNAL_ENABLED()            (true)
@@ -218,7 +219,6 @@ extern HardwareOptions hardwareOptions;
   #define IS_PXX1_INTERNAL_ENABLED()            (true)
 #endif
 
-
 void init_ppm(uint8_t module);
 void disable_ppm(uint8_t module);
 void init_pxx1_pulses(uint8_t module);
@@ -228,6 +228,8 @@ void disable_pxx2(uint8_t module);
 void init_serial(uint8_t module, uint32_t baudrate, uint32_t period_half_us);
 void intmoduleSerialStart(uint32_t baudrate, uint8_t rxEnable);
 void disable_serial(uint8_t module);
+void intmoduleStop();
+void intmoduleSendBuffer(const uint8_t * data, uint8_t size);
 void intmoduleSendNextFrame();
 void extmoduleSendNextFrame();
 
diff --git a/radio/src/targets/taranis/CMakeLists.txt b/radio/src/targets/taranis/CMakeLists.txt
index 6058e3271..c55b87974 100644
--- a/radio/src/targets/taranis/CMakeLists.txt
+++ b/radio/src/targets/taranis/CMakeLists.txt
@@ -211,7 +211,7 @@ set(GUI_SRC
   radio_diagkeys.cpp
   radio_diaganas.cpp
   radio_hardware.cpp
-
+  radio_tools.cpp
   view_channels.cpp
   view_telemetry.cpp
   view_about.cpp