diff --git a/nanovna.h b/nanovna.h
index 198abe1..cfc6aa0 100644
--- a/nanovna.h
+++ b/nanovna.h
@@ -91,6 +91,7 @@
 #define __USE_RTC__               // Enable RTC clock
 #define __USE_SD_CARD__           // Enable SD card support
 #define __SD_CARD_LOAD__          // Allow run commands from SD card (config.ini in root)
+#define __SD_CARD_DUMP_FIRMWARE__ // Allow dump firmware to SD card
 #define __LCD_BRIGHTNESS__        // LCD or hardware allow change brightness, add menu item for this
 #define __HARMONIC__
 #define __NOISE_FIGURE__
@@ -1274,6 +1275,7 @@ extern int linear_averaging;
 #else
 #define SAVEAREA_MAX 5
 #endif
+
 // STM32 minimum page size for write
 #define FLASH_PAGESIZE          0x800
 // config save area (flash7 addr)
@@ -1281,12 +1283,16 @@ extern int linear_averaging;
 #define SAVE_CONFIG_ADDR        0x0801D000
 #define SAVE_CONFIG_SIZE        FLASH_PAGESIZE
 #define FLASH_END               0x08020000
+#define FLASH_START_ADDRESS     0x08000000
+#define FLASH_TOTAL_SIZE        (128*1024)
 #endif
 
 #ifdef TINYSA4
 #define SAVE_CONFIG_ADDR        0x0803C000
 #define SAVE_CONFIG_SIZE        FLASH_PAGESIZE*2
 #define FLASH_END               0x08040000
+#define FLASH_START_ADDRESS     0x08000000
+#define FLASH_TOTAL_SIZE        (256*1024)
 #endif
 
 typedef char assert_config[sizeof(config_t)> SAVE_CONFIG_SIZE ? -1 : 1];        // Check config size
diff --git a/ui.c b/ui.c
index 78e0b40..8fbf2f0 100644
--- a/ui.c
+++ b/ui.c
@@ -3501,6 +3501,40 @@ static UI_FUNCTION_ADV_CALLBACK(menu_connection_acb)
   shell_reset_console();
 }
 #endif
+
+#ifdef __USE_SD_CARD__
+static uint16_t file_mask;
+
+// Save format enum
+enum {
+  FMT_BMP_FILE, FMT_CSV_FILE,
+#ifdef __SD_CARD_DUMP_FIRMWARE__
+  FMT_BIN_FILE,
+#endif
+//#ifdef __SD_CARD_LOAD__
+//  FMT_CMD_FILE,
+//#endif
+};
+
+// Save file extension
+static const char *file_ext[] = {
+  [FMT_BMP_FILE] = "bmp",
+  [FMT_CSV_FILE] = "csv",
+#ifdef __SD_CARD_DUMP_FIRMWARE__
+  [FMT_BIN_FILE] = "bin",
+#endif
+//#ifdef __SD_CARD_LOAD__
+//  [FMT_CMD_FILE] = "cmd",
+//#endif
+};
+
+static void sa_save_file(char *name, uint8_t format);
+
+static UI_FUNCTION_CALLBACK(menu_sdcard_cb) {
+  (void)item;
+  sa_save_file(0, data);
+}
+#endif
 // ===[MENU DEFINITION]=========================================================
 // Back button submenu list
 
@@ -3988,6 +4022,9 @@ static const menuitem_t menu_settings[] =
   { MT_CALLBACK,    0 ,             "LOAD\nCONFIG.INI",     menu_load_config_cb},
 //  { MT_CALLBACK,        1 ,       "LOAD\nSETTING.INI",    menu_load_config_cb},
 #endif
+#ifdef __SD_CARD_DUMP_FIRMWARE__
+  { MT_CALLBACK,    FMT_BIN_FILE,   "DUMP\nFIRMWARE",     menu_sdcard_cb},
+#endif
 #ifdef TINYSA4
   { MT_ADV_CALLBACK,     0,              "INTERNALS",            menu_internals_acb},
 #endif
@@ -6518,31 +6555,6 @@ static int touch_quick_menu(int touch_x, int touch_y)
 }
 
 #ifdef __USE_SD_CARD__
-static uint16_t file_mask;
-
-// Save format enum
-enum {
-  FMT_BMP_FILE, FMT_CSV_FILE,
-//#ifdef __SD_CARD_DUMP_FIRMWARE__
-//  FMT_BIN_FILE,
-//#endif
-//#ifdef __SD_CARD_LOAD__
-//  FMT_CMD_FILE,
-//#endif
-};
-
-// Save file extension
-static const char *file_ext[] = {
-  [FMT_BMP_FILE] = "bmp",
-  [FMT_CSV_FILE] = "csv",
-//#ifdef __SD_CARD_DUMP_FIRMWARE__
-//  [FMT_BIN_FILE] = "bin",
-//#endif
-//#ifdef __SD_CARD_LOAD__
-//  [FMT_CMD_FILE] = "cmd",
-//#endif
-};
-
 //*******************************************************************************************
 // Bitmap file header for LCD_WIDTH x LCD_HEIGHT image 16bpp (v4 format allow set RGB mask)
 //*******************************************************************************************
@@ -6674,18 +6686,18 @@ static void sa_save_file(char *name, uint8_t format) {
           res = f_write(fs_file, (char *)spi_buffer, buf - (char *)spi_buffer, &size);
         }
       break;
-//#ifdef __SD_CARD_DUMP_FIRMWARE__
-//      /*
-//       * Dump firmware to SD card as bin file image
-//       */
-//      case FMT_BIN_FILE:
-//      {
-//        const char *src = (const char*)FLASH_START_ADDRESS;
-//        const uint32_t total = FLASH_TOTAL_SIZE;
-//        res = f_write(fs_file, src, total, &size);
-//      }
-//      break;
-//#endif
+#ifdef __SD_CARD_DUMP_FIRMWARE__
+      /*
+       * Dump firmware to SD card as bin file image
+       */
+      case FMT_BIN_FILE:
+      {
+        const char *src = (const char*)FLASH_START_ADDRESS;
+        const uint32_t total = FLASH_TOTAL_SIZE;
+        res = f_write(fs_file, src, total, &size);
+      }
+      break;
+#endif
     }
     f_close(fs_file);
 //    shell_printf("Close = %d\r\n", res);
@@ -6699,11 +6711,6 @@ static void sa_save_file(char *name, uint8_t format) {
   ui_mode_normal();
 }
 
-static UI_FUNCTION_CALLBACK(menu_sdcard_cb) {
-  (void)item;
-  sa_save_file(0, data);
-}
-
 static void save_csv(uint8_t mask) {
   file_mask = mask;
   menu_sdcard_cb(0, FMT_CSV_FILE);