diff --git a/lib_xua/lib_xua/src/dfu/flash_interface.c b/lib_xua/lib_xua/src/dfu/flash_interface.c
index 5584785..dfc866d 100644
--- a/lib_xua/lib_xua/src/dfu/flash_interface.c
+++ b/lib_xua/lib_xua/src/dfu/flash_interface.c
@@ -23,7 +23,7 @@
  */
 #ifndef FLASH_MAX_UPGRADE_SIZE
 //#define FLASH_MAX_UPGRADE_SIZE (512 * 1024)
-#define FLASH_MAX_UPGRADE_SIZE (2200 * 1024)
+#define FLASH_MAX_UPGRADE_SIZE (3200 * 1024)
 #endif
 
 #define FLASH_ERROR() do {} while(0)
diff --git a/sw_usb_audio/app_usb_aud_fosi_c1/src/extensions/dfu_flash_interface.c b/sw_usb_audio/app_usb_aud_fosi_c1/src/extensions/dfu_flash_interface.c
index bb322e6..3e38b8a 100644
--- a/sw_usb_audio/app_usb_aud_fosi_c1/src/extensions/dfu_flash_interface.c
+++ b/sw_usb_audio/app_usb_aud_fosi_c1/src/extensions/dfu_flash_interface.c
@@ -14,7 +14,7 @@
 #if HID_DFU_EN
 
 #ifndef DFU_FLASH_MAX_UPGRADE_SIZE
-#define DFU_FLASH_MAX_UPGRADE_SIZE (2200 * 1024)
+#define DFU_FLASH_MAX_UPGRADE_SIZE (3200 * 1024)
 #endif
 
 #define DFU_FLASH_ERROR()
diff --git a/sw_usb_audio/app_usb_aud_fosi_c1/src/extensions/lfs_services.c b/sw_usb_audio/app_usb_aud_fosi_c1/src/extensions/lfs_services.c
index ef3e355..435d16e 100644
--- a/sw_usb_audio/app_usb_aud_fosi_c1/src/extensions/lfs_services.c
+++ b/sw_usb_audio/app_usb_aud_fosi_c1/src/extensions/lfs_services.c
@@ -18,9 +18,9 @@ lfs_file_t file;
 swlock_t flash_lock = SWLOCK_INITIAL_VALUE;
 
 static rtos_qspi_flash_t qspi_flash_ctx_s;
-#define FLASH_CLKBLK CLKBLK_FLASHLIB 
+#define FLASH_CLKBLK CLKBLK_FLASHLIB
 #ifndef FS_BASE_ADDR
-#define FS_BASE_ADDR (2500 * 1024)
+#define FS_BASE_ADDR (3500 * 1024)
 #endif
 #define SECTOR_SIZE  4096
 rtos_qspi_flash_t *qspi_flash_ctx = &qspi_flash_ctx_s;
@@ -145,13 +145,13 @@ int lfs_format_all(void) {
     if (res != 0) {
         return res; // Already failed and released lock, or blocked
     }
-    
+
     // Mount succeeded, but we want to format, so unmount first
     lfs_unmount(&lfs);
-    
+
     // 格式化整个LFS分区，清除所有数据
     int err = lfs_format(&lfs, &cfg);
-    
+
     // Even if format fails, we must cleanup the session
     lfs_session_active = 0;
     swlock_release(&flash_lock);
@@ -264,7 +264,7 @@ int lfs_create_directory(const char * dir_path)
 {
     char temp_file[256];
     snprintf(temp_file, sizeof(temp_file), "%s/.dir", dir_path);
-    
+
     lfs_file_t file;
     int result = lfs_file_open(&lfs, &file, temp_file, LFS_O_RDWR | LFS_O_CREAT);
     if (result == 0) {
diff --git a/sw_usb_audio/app_usb_aud_fosi_c1_lp/src/extensions/dfu_flash_interface.c b/sw_usb_audio/app_usb_aud_fosi_c1_lp/src/extensions/dfu_flash_interface.c
index bb322e6..3e38b8a 100644
--- a/sw_usb_audio/app_usb_aud_fosi_c1_lp/src/extensions/dfu_flash_interface.c
+++ b/sw_usb_audio/app_usb_aud_fosi_c1_lp/src/extensions/dfu_flash_interface.c
@@ -14,7 +14,7 @@
 #if HID_DFU_EN
 
 #ifndef DFU_FLASH_MAX_UPGRADE_SIZE
-#define DFU_FLASH_MAX_UPGRADE_SIZE (2200 * 1024)
+#define DFU_FLASH_MAX_UPGRADE_SIZE (3200 * 1024)
 #endif
 
 #define DFU_FLASH_ERROR()
diff --git a/sw_usb_audio/app_usb_aud_fosi_c1_lp/src/extensions/lfs_services.c b/sw_usb_audio/app_usb_aud_fosi_c1_lp/src/extensions/lfs_services.c
index a42ec6e..d4d53f9 100644
--- a/sw_usb_audio/app_usb_aud_fosi_c1_lp/src/extensions/lfs_services.c
+++ b/sw_usb_audio/app_usb_aud_fosi_c1_lp/src/extensions/lfs_services.c
@@ -17,7 +17,7 @@ swlock_t lfs_lock = SWLOCK_INITIAL_VALUE;
 static rtos_qspi_flash_t qspi_flash_ctx_s;
 #define FLASH_CLKBLK CLKBLK_FLASHLIB 
 #ifndef FS_BASE_ADDR
-#define FS_BASE_ADDR (2500 * 1024)
+#define FS_BASE_ADDR (3500 * 1024)
 #endif
 #define SECTOR_SIZE  4096
 rtos_qspi_flash_t *qspi_flash_ctx = &qspi_flash_ctx_s;
diff --git a/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/dfu_flash_interface.c b/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/dfu_flash_interface.c
index 73ef78e..cb85a11 100644
--- a/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/dfu_flash_interface.c
+++ b/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/dfu_flash_interface.c
@@ -14,7 +14,7 @@
 #if HID_DFU_EN
 
 #ifndef DFU_FLASH_MAX_UPGRADE_SIZE
-#define DFU_FLASH_MAX_UPGRADE_SIZE (2200 * 1024)
+#define DFU_FLASH_MAX_UPGRADE_SIZE (3200 * 1024)
 #endif
 
 #define DFU_FLASH_ERROR()
diff --git a/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/lfs_services.c b/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/lfs_services.c
index 1a63d49..8e07f24 100644
--- a/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/lfs_services.c
+++ b/sw_usb_audio/app_usb_aud_fosi_c1_v71/src/extensions/lfs_services.c
@@ -26,7 +26,7 @@ swlock_t flash_lock = SWLOCK_INITIAL_VALUE;
 static rtos_qspi_flash_t qspi_flash_ctx_s;
 #define FLASH_CLKBLK CLKBLK_FLASHLIB 
 #ifndef FS_BASE_ADDR
-#define FS_BASE_ADDR (2500 * 1024)
+#define FS_BASE_ADDR (3500 * 1024)
 #endif
 #define SECTOR_SIZE  4096
 rtos_qspi_flash_t *qspi_flash_ctx = &qspi_flash_ctx_s;