diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 7f0b418..20efd53 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -20,22 +20,7 @@
     </configurations>
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="cea36e80-e289-4d69-9030-7186d540ac0e" name="更改" comment="开机音修复">
-      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/CMakeLists.txt" beforeDir="false" afterPath="$PROJECT_DIR$/CMakeLists.txt" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/README.md" beforeDir="false" afterPath="$PROJECT_DIR$/README.md" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/app/mdc1200.c" beforeDir="false" afterPath="$PROJECT_DIR$/app/mdc1200.c" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/app/mdc1200.h" beforeDir="false" afterPath="$PROJECT_DIR$/app/mdc1200.h" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/cmake-build-debug/CMakeFiles/3.25.2/CMakeCCompiler.cmake" beforeDir="false" afterPath="$PROJECT_DIR$/cmake-build-debug/CMakeFiles/3.25.2/CMakeCCompiler.cmake" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/cmake-build-debug/CMakeFiles/3.25.2/CMakeCXXCompiler.cmake" beforeDir="false" afterPath="$PROJECT_DIR$/cmake-build-debug/CMakeFiles/3.25.2/CMakeCXXCompiler.cmake" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/cmake-build-debug/CMakeFiles/3.25.2/CMakeDetermineCompilerABI_C.bin" beforeDir="false" afterPath="$PROJECT_DIR$/cmake-build-debug/CMakeFiles/3.25.2/CMakeDetermineCompilerABI_C.bin" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/cmake-build-debug/CMakeFiles/3.25.2/CMakeSystem.cmake" beforeDir="false" afterPath="$PROJECT_DIR$/cmake-build-debug/CMakeFiles/3.25.2/CMakeSystem.cmake" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/cmake-build-debug/CMakeFiles/CMakeOutput.log" beforeDir="false" afterPath="$PROJECT_DIR$/cmake-build-debug/CMakeFiles/CMakeOutput.log" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/cmake-build-debug/CMakeFiles/clion-environment.txt" beforeDir="false" afterPath="$PROJECT_DIR$/cmake-build-debug/CMakeFiles/clion-environment.txt" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/main.c" beforeDir="false" afterPath="$PROJECT_DIR$/main.c" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/ui/main.c" beforeDir="false" afterPath="$PROJECT_DIR$/ui/main.c" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/win_make.bat" beforeDir="false" afterPath="$PROJECT_DIR$/win_make.bat" afterDir="false" />
-    </list>
+    <list default="true" id="cea36e80-e289-4d69-9030-7186d540ac0e" name="更改" comment="MDC联系人" />
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
     <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
@@ -199,14 +184,7 @@
       <workItem from="1702006730071" duration="3144000" />
       <workItem from="1702024305901" duration="2385000" />
       <workItem from="1702049513969" duration="28027000" />
-      <workItem from="1702119088204" duration="9977000" />
-    </task>
-    <task id="LOCAL-00032" summary="MDC RX">
-      <created>1701682489155</created>
-      <option name="number" value="00032" />
-      <option name="presentableId" value="LOCAL-00032" />
-      <option name="project" value="LOCAL" />
-      <updated>1701682489155</updated>
+      <workItem from="1702119088204" duration="10553000" />
     </task>
     <task id="LOCAL-00033" summary="MDC RX">
       <created>1701682811016</created>
@@ -544,7 +522,14 @@
       <option name="project" value="LOCAL" />
       <updated>1702098575234</updated>
     </task>
-    <option name="localTasksCounter" value="81" />
+    <task id="LOCAL-00081" summary="MDC联系人">
+      <created>1702137830893</created>
+      <option name="number" value="00081" />
+      <option name="presentableId" value="LOCAL-00081" />
+      <option name="project" value="LOCAL" />
+      <updated>1702137830894</updated>
+    </task>
+    <option name="localTasksCounter" value="82" />
     <servers />
   </component>
   <component name="TypeScriptGeneratedFilesManager">
@@ -568,7 +553,6 @@
     </option>
   </component>
   <component name="VcsManagerConfiguration">
-    <MESSAGE value="create" />
     <MESSAGE value="fix bug" />
     <MESSAGE value="掃描下翻譯" />
     <MESSAGE value="fix https://github.com/losehu/uv-k5-firmware-chinese/issues/4" />
@@ -593,6 +577,7 @@
     <MESSAGE value="重构" />
     <MESSAGE value="clion" />
     <MESSAGE value="开机音修复" />
-    <option name="LAST_COMMIT_MESSAGE" value="开机音修复" />
+    <MESSAGE value="MDC联系人" />
+    <option name="LAST_COMMIT_MESSAGE" value="MDC联系人" />
   </component>
 </project>
\ No newline at end of file
diff --git a/app/mdc1200.c b/app/mdc1200.c
index 295ef03..33d570d 100644
--- a/app/mdc1200.c
+++ b/app/mdc1200.c
@@ -547,7 +547,7 @@ bool mdc1200_contact_find(uint16_t mdc_id, char *contact) {
         uint8_t read_once[16]={0};
         if ((i & 3) == 0 && i) add++;
         EEPROM_ReadBuffer(MDC_ADD[add] + i * 16, read_once, 16);
-        if (mdc_id == (uint16_t) (read_once[0] | (read_once[1] << 8))) {
+        if (mdc_id == (uint16_t) (read_once[1] | (read_once[0] << 8))) {
             for (int j = 0; j < 14; ++j) {
                 if(read_once[2+j]<' '||read_once[2+j]>'~')
                     return false;