diff --git a/Core/Src/24AA02E48.c b/Core/Src/24AA02E48.c
index 3e8dc83..8ebce17 100644
--- a/Core/Src/24AA02E48.c
+++ b/Core/Src/24AA02E48.c
@@ -32,6 +32,8 @@ void EEPROM_24AA02E48_run_test(void)
 			display_write_data_seq("/5 ");
 
 			switch (op_result) {
+			case HAL_OK:
+				break;
 			case HAL_ERROR:
 				display_write_data_seq("ERROR");
 				break;
@@ -64,6 +66,8 @@ void EEPROM_24AA02E48_run_test(void)
 			display_write_data_seq("/5 ");
 
 			switch (op_result) {
+			case HAL_OK:
+				break;
 			case HAL_ERROR:
 				display_write_data_seq("ERROR");
 				break;
@@ -89,10 +93,10 @@ void EEPROM_24AA02E48_run_test(void)
 		display_write_data_byte('0' + err_count / 10 % 10);
 		display_write_data_byte('0' + err_count % 10);
 		display_write_data_seq("E ");
-		display_write_data_seq(data_buffer);
+		display_write_data_seq((char *) data_buffer);
 	} else {
 		DISPLAY_SET_CURSOR(1, 1);
 		display_write_data_seq("OK ");
-		display_write_data_seq(data_buffer);
+		display_write_data_seq((char *) data_buffer);
 	}
 }