diff --git a/src/OpenixCard/FEX2CFG.cpp b/src/OpenixCard/FEX2CFG.cpp
index 5c677a0..4c954a5 100644
--- a/src/OpenixCard/FEX2CFG.cpp
+++ b/src/OpenixCard/FEX2CFG.cpp
@@ -146,7 +146,7 @@ void FEX2CFG::gen_cfg() {
                     std::cout << "Remaining space.";
                 }
             } else if (opt.get_name() == "size") {
-                std::cout << opt.get<inicpp::unsigned_ini_t>() / 0x300 << "MB - " << opt.get<inicpp::unsigned_ini_t>() << "KB";
+                std::cout << static_cast<double>(opt.get<inicpp::unsigned_ini_t>()) / 2 / 0x300 << "MB - " << opt.get<inicpp::unsigned_ini_t>() / 2 << "KB";
             }
         }
         std::cout << std::endl;
diff --git a/src/OpenixCard/OpenixCard.cpp b/src/OpenixCard/OpenixCard.cpp
index a2986aa..fd675d2 100644
--- a/src/OpenixCard/OpenixCard.cpp
+++ b/src/OpenixCard/OpenixCard.cpp
@@ -145,7 +145,7 @@ void OpenixCard::show_logo() {
               "|     |___ ___ ___|_|_ _|     |___ ___ _| |\n"
               "|  |  | . | -_|   | |_'_|   --| .'|  _| . |\n"
               "|_____|  _|___|_|_|_|_,_|_____|__,|_| |___|\n"
-              "      |_| Version: " << PROJECT_GIT_HASH
+              "      |_| Version: " << PROJECT_GIT_HASH << " Commit: " << PROJECT_VER
               << cc::magenta <<
               "\nCopyright (c) 2022, YuzukiTsuru <GloomyGhost@GloomyGhost.com>\n"
               << cc::reset << std::endl;
@@ -189,8 +189,21 @@ void OpenixCard::unpack_target_image() {
     std::filesystem::create_directories(temp_file_path);
     crypto_init();
     std::cout << cc::cyan;
-    unpack_image(input_file.c_str(), temp_file_path.c_str(), is_absolute);
+    auto unpack_img_ret = unpack_image(input_file.c_str(), temp_file_path.c_str(), is_absolute);
     std::cout << cc::reset;
+
+    switch (unpack_img_ret) {
+        case 2:
+            throw file_open_error(input_file);
+        case 3:
+            throw file_size_error(input_file);
+        case 4:
+            throw std::runtime_error("Unable to allocate memory for image: "+ input_file);
+        case 5:
+            throw file_format_error(input_file);
+        default:
+            break;
+    }
 }
 
 void OpenixCard::dump_and_clean() {
@@ -229,5 +242,6 @@ void OpenixCard::get_real_size() {
     FEX2CFG fex2Cfg(temp_file_path);
     auto real_size = fex2Cfg.get_image_real_size(true);
     LOG::DATA("The accurate size of image: " + std::to_string(real_size / 1024) + "MB, " + std::to_string(real_size) + "KB");
+    std::filesystem::remove_all(temp_file_path);
 }
 
diff --git a/src/OpenixCard/exception.h b/src/OpenixCard/exception.h
index c784acc..745b5a4 100644
--- a/src/OpenixCard/exception.h
+++ b/src/OpenixCard/exception.h
@@ -20,6 +20,16 @@ class file_open_error : public std::runtime_error {
     explicit file_open_error(const std::string &what) : std::runtime_error("Fail to open file: " + what + ".") {};
 };
 
+class file_format_error : public std::runtime_error {
+public:
+    explicit file_format_error(const std::string &what) : std::runtime_error("File: " + what + " is not Allwinner image.") {};
+};
+
+class file_size_error : public std::runtime_error {
+public:
+    explicit file_size_error(const std::string &what) : std::runtime_error("Invalid file size: " + what + ".") {};
+};
+
 class no_file_provide_error : public std::runtime_error {
 public:
     no_file_provide_error() : std::runtime_error("No file Provide.") {};
diff --git a/src/OpenixIMG/src/OpenixIMG.c b/src/OpenixIMG/src/OpenixIMG.c
index df345ac..d7419d3 100644
--- a/src/OpenixIMG/src/OpenixIMG.c
+++ b/src/OpenixIMG/src/OpenixIMG.c
@@ -27,7 +27,6 @@ int flag_encryption_enabled;
     } while (0)
 
 #define O_LOG(fmt, arg...) OpenixIMG_LOG("[OpenixIMG INFO] " fmt, ##arg)
-#define O_ERR(fmt, arg...) OpenixIMG_LOG("[OpenixIMG ERROR] " fmt, ##arg)
 
 /* Crypto */
 rc6_ctx_t header_ctx;
@@ -138,7 +137,6 @@ int unpack_image(const char *infn, const char *outdn, int is_absolute) {
 
     ifp = fopen(infn, "rb");
     if (ifp == NULL) {
-        O_ERR("Error: unable to open %s!\n", infn);
         return 2;
     }
 
@@ -147,13 +145,11 @@ int unpack_image(const char *infn, const char *outdn, int is_absolute) {
     fseek(ifp, 0, SEEK_SET);
 
     if (imagesize <= 0) {
-        O_ERR("Error: Invalid file size %ld (%s)\n", imagesize, strerror(errno));
         return 3;
     }
 
     image = malloc(imagesize);
     if (!image) {
-        O_ERR("Error: Unable to allocate memory for image: %ld\n", imagesize);
         return 4;
     }
 
@@ -177,12 +173,14 @@ int unpack_image(const char *infn, const char *outdn, int is_absolute) {
         firmware_id = header->v3.firmware_id;
         pid = header->v3.pid;
         vid = header->v3.vid;
-    } else /*if (header->header_version == 0x0100)*/ {
+    } else if (header->header_version == 0x0100) {
         num_files = header->v1.num_files;
         hardware_id = header->v1.hardware_id;
         firmware_id = header->v1.firmware_id;
         pid = header->v1.pid;
         vid = header->v1.vid;
+    } else {
+        return 5;
     }
 
     /* Decrypt file headers */