diff --git a/src/rs485.c b/src/rs485.c
index e00e6d2..b578061 100644
--- a/src/rs485.c
+++ b/src/rs485.c
@@ -61,16 +61,16 @@ void process_command(uint8_t *cmd, size_t length) {
             }
             break;
         case VALIDATION_CRC_ERROR:
-            printf("%c%c%c%c%c%c%c", 0xB5, 0xF0, 0x03, 0x65, 0x72, 0x72, 0x3F);
+            printf("%c%c%c%c%c%c%c", 0xB5, 0xF1, 0x03, 0x65, 0x72, 0x72, 0x3D);
             break;
         case VALIDATION_HEADER_ERROR:
-            printf("%c%c%c%c%c%c%c", 0xB5, 0xF3, 0x03, 0x65, 0x72, 0x72, 0x3F);
+            printf("%c%c%c%c%c%c%c", 0xB5, 0xF2, 0x03, 0x65, 0x72, 0x72, 0x3E);
             break;
         case VALIDATION_TYPE_ERROR:
-            printf("%c%c%c%c%c%c%c", 0xB5, 0xF4, 0x03, 0x65, 0x72, 0x72, 0x3F);
+            printf("%c%c%c%c%c%c%c", 0xB5, 0xF3, 0x03, 0x65, 0x72, 0x72, 0x3F);
             break;
         case VALIDATION_LENGTH_ERROR:
-            printf("%c%c%c%c%c%c%c", 0xB5, 0xF2, 0x03, 0x65, 0x72, 0x72, 0x3F);
+            printf("%c%c%c%c%c%c%c", 0xB5, 0xF4, 0x03, 0x65, 0x72, 0x72, 0x40);
             break;
         default:
             break;
@@ -131,7 +131,7 @@ void eddy_current_value_report(void) {
 
     printf("%c%c%c", package_header[0], package_header[1], package_header[2]);
     printf("%c%c%c%c", package_data[0], package_data[1], package_data[2], package_data[3]);
-    printf("%c", calculate_crc(combined_data, 7));
+    printf("%c", calculate_crc(combined_data, 8));
 }
 
 void tempture_value_report(void) {
@@ -146,5 +146,5 @@ void tempture_value_report(void) {
 
     printf("%c%c%c", package_header[0], package_header[1], package_header[2]);
     printf("%c%c%c%c", package_data[0], package_data[1], package_data[2], package_data[3]);
-    printf("%c", calculate_crc(combined_data, 7));
+    printf("%c", calculate_crc(combined_data, 8));
 }