diff --git a/a.ino b/a.ino
index 602ed81..cb6449e 100644
--- a/a.ino
+++ b/a.ino
@@ -348,9 +348,12 @@ void resetMCP2515() {
     // 4. MCP2515 재초기화
     mcp2515.reset();
     delay(100);
+    currentCanSpeed = preferences.getInt("can_speed", CAN_500KBPS);
+
     mcp2515.setBitrate(currentCanSpeed, MCP_8MHZ);
     delay(10);
-    mcp2515.setListenOnlyMode();
+    currentMcpMode = preferences.getInt("can_mode", MCP_MODE_LISTEN_ONLY);
+    //mcp2515.setListenOnlyMode();
     //currentMcpMode = MCP_MODE_LISTEN_ONLY;
     
     
@@ -2925,12 +2928,20 @@ void setup() {
     
     mcp2515.reset();
     delay(100);
+    currentCanSpeed = preferences.getInt("can_speed", CAN_500KBPS);
     mcp2515.setBitrate(currentCanSpeed, MCP_8MHZ);
     delay(10);
-    mcp2515.setListenOnlyMode();
-    //currentMcpMode = MCP_MODE_LISTEN_ONLY;
-    currentMcpMode =(MCP2515Mode)preferences.getInt("mcp_mode", 1);
-    
+    currentMcpMode = preferences.getInt("can_mode", MCP_MODE_LISTEN_ONLY);
+
+    // 5. 모드 설정 (Normal/Loopback/Listen Only)
+    if (currentMcpMode == MCP_MODE_NORMAL) {
+        mcp2515.setNormalMode();
+    } else if (currentMcpMode == MCP_MODE_LOOPBACK) {
+        mcp2515.setLoopbackMode();
+    } else {
+        mcp2515.setListenOnlyMode();
+    }
+
     delay(50);
     
     // 버퍼 클리어