diff --git a/boards/holybro/kakuteh7dualimu/extras/holybro_kakuteh7dualimu_bootloader.bin b/boards/holybro/kakuteh7dualimu/extras/holybro_kakuteh7dualimu_bootloader.bin
index ca38b36346..d0b7bfa91b 100755
Binary files a/boards/holybro/kakuteh7dualimu/extras/holybro_kakuteh7dualimu_bootloader.bin and b/boards/holybro/kakuteh7dualimu/extras/holybro_kakuteh7dualimu_bootloader.bin differ
diff --git a/boards/holybro/kakuteh7dualimu/firmware.prototype b/boards/holybro/kakuteh7dualimu/firmware.prototype
index ff5cece0a7..4e00d7a8fc 100644
--- a/boards/holybro/kakuteh7dualimu/firmware.prototype
+++ b/boards/holybro/kakuteh7dualimu/firmware.prototype
@@ -7,7 +7,7 @@
     "summary": "KAKUTEH7",
     "version": "0.1",
     "image_size": 0,
-    "image_maxsize": 1835008,
+    "image_maxsize": 1703936,
     "git_identity": "",
     "board_revision": 0
 }
diff --git a/boards/holybro/kakuteh7dualimu/nuttx-config/scripts/script.ld b/boards/holybro/kakuteh7dualimu/nuttx-config/scripts/script.ld
index ae07f4bfca..31780fad15 100644
--- a/boards/holybro/kakuteh7dualimu/nuttx-config/scripts/script.ld
+++ b/boards/holybro/kakuteh7dualimu/nuttx-config/scripts/script.ld
@@ -110,7 +110,7 @@
 MEMORY
 {
 	ITCM_RAM  (rwx) : ORIGIN = 0x00000000, LENGTH =   64K
-	FLASH      (rx) : ORIGIN = 0x08020000, LENGTH = 1792K /* params in last sector */
+	FLASH      (rx) : ORIGIN = 0x08020000, LENGTH = 1664K /* params in last two sectors */
 
 	DTCM1_RAM (rwx) : ORIGIN = 0x20000000, LENGTH =   64K
 	DTCM2_RAM (rwx) : ORIGIN = 0x20010000, LENGTH =   64K
diff --git a/boards/holybro/kakuteh7dualimu/src/hw_config.h b/boards/holybro/kakuteh7dualimu/src/hw_config.h
index 03823de861..9620345ff3 100644
--- a/boards/holybro/kakuteh7dualimu/src/hw_config.h
+++ b/boards/holybro/kakuteh7dualimu/src/hw_config.h
@@ -72,7 +72,7 @@
 #define BOARD_TYPE                     5409
 #define BOARD_FLASH_SECTORS            (14)
 #define BOARD_FLASH_SIZE               (16 * 128 * 1024)
-#define APP_RESERVATION_SIZE           (1 * 128 * 1024)
+#define APP_RESERVATION_SIZE           (2 * 128 * 1024)
 
 #define OSC_FREQ                       8