diff --git a/common.cpp b/common.cpp
index 202a29c..ab257a0 100644
--- a/common.cpp
+++ b/common.cpp
@@ -57,7 +57,6 @@ uint8_t *loadfile(const char *fn, size_t *num, size_t extra) {
     size_t n = 0, j = 0;
     uint8_t *buf = nullptr;
     EnhancedFile fi = oxfopen_enhanced(fn, "rb");
-    
     if (fi) {
         if (fi.seek(0, SEEK_END) == 0) {
             long n_long = fi.tell();
@@ -73,7 +72,6 @@ uint8_t *loadfile(const char *fn, size_t *num, size_t extra) {
             }
         }
     }
-    
     if (num) *num = j;
     return buf;
 }
diff --git a/core/file_io.cpp b/core/file_io.cpp
index 6dde573..007e787 100644
--- a/core/file_io.cpp
+++ b/core/file_io.cpp
@@ -139,9 +139,9 @@ UniqueFile my_oxfopen_unique(const char* fn, const char* mode) {
 }
 
 // EnhancedFile 实现
-EnhancedFile::EnhancedFile(FILE* f) noexcept : file(f) {}
+EnhancedFile::EnhancedFile(FILE* f) noexcept { file = UniqueFile(f); }
 
-EnhancedFile::EnhancedFile(UniqueFile&& f) noexcept : file(std::move(f)) {}
+EnhancedFile::EnhancedFile(UniqueFile&& f) noexcept { file = std::move(f); }
 
 EnhancedFile::operator bool() const noexcept {
     return file != nullptr;
@@ -175,9 +175,9 @@ void EnhancedFile::close() noexcept {
     file.reset();
 }
 
-bool EnhancedFile::flush() noexcept {
-    if (file) return fflush(file.get()) == 0;
-    return false;
+int EnhancedFile::flush() noexcept {
+    if (file) return fflush(file.get());
+    return -1;
 }
 
 long EnhancedFile::tell() const noexcept {
@@ -190,30 +190,34 @@ long EnhancedFile::tello() const noexcept {
     return -1L;
 }
 
-bool EnhancedFile::seek(long offset, int origin) noexcept {
-    if (file) return fseek(file.get(), offset, origin) == 0;
-    return false;
+int EnhancedFile::seek(long offset, int origin) noexcept {
+    if (file) return fseek(file.get(), offset, origin);
+    return -1;
 }
 
-bool EnhancedFile::seeko(long offset, int origin) noexcept {
-    if (file) return fseeko(file.get(), offset, origin) == 0;
-    return false;
+int EnhancedFile::seeko(long offset, int origin) noexcept {
+    if (file) return fseeko(file.get(), offset, origin);
+    return -1;
 }
 
-bool EnhancedFile::eof() const noexcept {
-    if (file) return feof(file.get()) != 0;
-    return true;
+int EnhancedFile::eof() const noexcept {
+    if (file) return feof(file.get());
+    return -1;
 }
 
-bool EnhancedFile::error() const noexcept {
-    if (file) return ferror(file.get()) != 0;
-    return true;
+int EnhancedFile::error() const noexcept {
+    if (file) return ferror(file.get());
+    return -1;
 }
 
 void EnhancedFile::clearerr() noexcept {
     if (file) ::clearerr(file.get());
 }
 
+void EnhancedFile::rewind() noexcept {
+    if (file) ::rewind(file.get());
+}
+
 size_t EnhancedFile::write(const void* buffer, size_t size, size_t count) noexcept {
     if (file) return fwrite(buffer, size, count, file.get());
     return 0;
diff --git a/core/file_io.h b/core/file_io.h
index 23aa891..2afb173 100644
--- a/core/file_io.h
+++ b/core/file_io.h
@@ -69,14 +69,14 @@ class EnhancedFile {
     UniqueFile release() noexcept;
     void reset(FILE* f = nullptr) noexcept;
     void close() noexcept;
-    bool flush() noexcept;
+    int flush() noexcept;
     long tell() const noexcept;
     long tello() const noexcept;
-    bool seek(long offset, int origin) noexcept;
-    bool seeko(long offset, int origin) noexcept;
-    void rewind() noexcept { seek(0, SEEK_SET); }
-    bool eof() const noexcept;
-    bool error() const noexcept;
+    int seek(long offset, int origin) noexcept;
+    int seeko(long offset, int origin) noexcept;
+    void rewind() noexcept;
+    int eof() const noexcept;
+    int error() const noexcept;
     void clearerr() noexcept;
     
     // 读写操作
diff --git a/main_console.cpp b/main_console.cpp
index 3a3d313..db09fff 100644
--- a/main_console.cpp
+++ b/main_console.cpp
@@ -946,6 +946,7 @@ int main_console(int argc, char** argv) {
 						argv += argchange;
 						continue;
 					}
+					fi.close();
 					if (cve_v2) {
 						size_t execsize = send_file(io, fn, addr, 0, 528, 0, 0);
 						int n, gapsize = exec_addr - addr - execsize;
diff --git a/pages/page_connect.cpp b/pages/page_connect.cpp
index a3ab6a0..377ce78 100644
--- a/pages/page_connect.cpp
+++ b/pages/page_connect.cpp
@@ -144,6 +144,7 @@ void on_button_clicked_fdl_exec(GtkWidgetHelper helper) {
 				DEG_LOG(W, "File does not exist.");
 				return;
 			}
+			fi.close();
 			if (!isKickMode) send_file(io, fdl_path, fdl_addr, end_data, blk_size ? blk_size : 528, 0, 0);
 			else send_file(io, fdl_path, fdl_addr, 0, 528, 0, 0);
 		} else {
@@ -381,7 +382,8 @@ void on_button_clicked_fdl_exec(GtkWidgetHelper helper) {
 				if (!fi) {
 					DEG_LOG(W, "File does not exist.\n");
 					return;
-				} else fi.close();
+				}
+				fi.close();
 				send_file(io, fdl_path, fdl_addr, end_data, 528, 0, 0);
 				if (cve_addr && strlen(cve_addr) > 0 && isCve) {
 					bool isCVEv2 = helper.getSwitchState(helper.getWidget("cve_v2"));