diff --git a/ADIS_Sumo/Sumo/Maze.c b/ADIS_Sumo/Sumo/Maze.c
index d07b4ef..1483ac3 100644
--- a/ADIS_Sumo/Sumo/Maze.c
+++ b/ADIS_Sumo/Sumo/Maze.c
@@ -144,13 +144,7 @@ uint8_t MAZE_EvaluteTurn(bool *finished, bool *deadEndGoBw) {
   *deadEndGoBw = FALSE; /* default */
   currLineKind = REF_GetLineKind(REF_LINE_KIND_MODE_MAZE);
   if (currLineKind==REF_LINE_NONE) { /* nothing, must be dead end */
-#if PL_GO_DEADEND_BW
-    TURN_Turn(TURN_STEP_LINE_BW, NULL); /* step back so we are again on the line for line following */
-    turn = TURN_STRAIGHT;
-    *deadEndGoBw = TRUE;
-#else
     turn = TURN_LEFT180;
-#endif
   } else {
     HISTORY_Clear(); /* clear history values */
     HISTORY_SampleSensors(); /* store current values */
diff --git a/ADIS_Sumo/source/IncludeMcuLibConfig.h b/ADIS_Sumo/source/IncludeMcuLibConfig.h
index c4cfaba..5df2d11 100644
--- a/ADIS_Sumo/source/IncludeMcuLibConfig.h
+++ b/ADIS_Sumo/source/IncludeMcuLibConfig.h
@@ -120,10 +120,5 @@
 /* ---------------------------------------------------------------------------------------*/
 /* FXOS8700 accelerometer */
 #define McuFXOS8700_CONFIG_I2C_DEVICE_ADDRESS  (0x1D)
-/* ------------------- McuLog -----------------------*/
-#define McuLog_CONFIG_IS_ENABLED            (1)
-#define McuLog_CONFIG_LOG_TIMESTAMP_DATE    (0)
-#define McuLog_CONFIG_LOG_TIMESTAMP_TIME    (1)
-#define McuLog_CONFIG_NOF_CONSOLE_LOGGER    (2)
 /* ---------------------------------------------------------------------------------------*/
 
diff --git a/ADIS_Sumo/source/Shell.c b/ADIS_Sumo/source/Shell.c
index 80e032e..851de23 100644
--- a/ADIS_Sumo/source/Shell.c
+++ b/ADIS_Sumo/source/Shell.c
@@ -54,7 +54,6 @@
 #if PL_CONFIG_HAS_ACCEL
   #include "McuFXOS8700.h"
 #endif
-#include "McuLog.h"
 
 static const McuShell_ParseCommandCallback CmdParserTable[] =
 {
@@ -112,7 +111,6 @@ static const McuShell_ParseCommandCallback CmdParserTable[] =
 #if PL_CONFIG_HAS_ACCEL
   McuFXOS8700_ParseCommand,
 #endif
-  McuLog_ParseCommand,
   NULL /* Sentinel */
 };
 
@@ -195,7 +193,7 @@ static void ShellTask(void *pv) {
   unsigned int i;
 
   (void)pv; /* not used */
-  McuLog_info("Shell task started.\r\n");
+  McuShell_SendStr((uint8_t*)"Shell task started.\r\n", McuShell_GetStdio()->stdOut);
   for(i=0;i<sizeof(ios)/sizeof(ios[0]);i++) {
     ios[i].buf[0] = '\0';
   }
@@ -224,16 +222,6 @@ void SHELL_Init(void) {
 #if PL_CONFIG_USE_ESP32
   McuESP32_SetRxFromESPStdio(&ESP_ToShellStdio); /* copy ESP UART to shell console */
 #endif
-#if McuLog_CONFIG_IS_ENABLED
-  #if PL_CONFIG_USE_RTT && PL_CONFIG_USE_UART_SHELL && McuLog_CONFIG_NOF_CONSOLE_LOGGER==2 /* both */
-    McuLog_set_console(McuRTT_GetStdio(), 0);
-    McuLog_set_console(&McuShellUart_stdio, 1);
-  #elif PL_CONFIG_USE_RTT /* only RTT */
-    McuLog_set_console(McuRTT_GetStdio(), 0);
-  #elif PL_CONFIG_USE_UART_SHELL /* only UART */
-    McuLog_set_console(&McuShellUart_stdio, 0);
-  #endif
-#endif
 }
 
 void SHELL_Deinit(void) {}
diff --git a/ADIS_Sumo/source/platform.c b/ADIS_Sumo/source/platform.c
index 7ca1e2b..624c976 100644
--- a/ADIS_Sumo/source/platform.c
+++ b/ADIS_Sumo/source/platform.c
@@ -65,7 +65,6 @@
 #if PL_CONFIG_APP_LINE_MAZE
   #include "maze.h"
 #endif
-#include "McuLog.h"
 
 #if PL_CONFIG_HAS_NVM_CONFIG
 static void InitNVMCValues(void) {
@@ -149,7 +148,7 @@ void PL_Init(void) {
 #endif
   TRG_Init();
   TMR_Init();
-  McuLog_Init();
+
 #if PL_CONFIG_USE_QUADRATURE
   QuadCounter_Init();
 #endif
diff --git a/ADIS_Sumo/source/platform.h b/ADIS_Sumo/source/platform.h
index c10713a..53f559d 100644
--- a/ADIS_Sumo/source/platform.h
+++ b/ADIS_Sumo/source/platform.h
@@ -9,7 +9,7 @@
 
 /* robot type */
 #define PL_IS_INTRO_ZUMO_K22          (1) /* Zumo robot with NXP K22FX512 */
-#define PL_IS_INTRO_ZUMO_K22_V2       (1) /* 1: Sumo with magnetic encoders, 0: V1 Robot with optical encoders */
+#define PL_IS_INTRO_ZUMO_K22_V2       (1) /* 1: Sumo with magnetic encoders, 0: V1 Robot with optical encoders */ /* \todo should get rid of it */
 
 /* ESP32 related */
 #define PL_CONFIG_HAS_ESP32_SHIELD    (1) /* if having ESP32 shield mounted */
@@ -66,8 +66,8 @@
 #define PL_CONFIG_HAS_NVM_CONFIG            (1)
 
 /* application modes, one has to be enabled */
-#define PL_CONFIG_APP_LINE_FOLLOWING  (1 && PL_CONFIG_USE_LINE_SENSOR && PL_CONFIG_USE_PID)
-#define PL_CONFIG_APP_LINE_MAZE       (0 && PL_CONFIG_USE_LINE_SENSOR && PL_CONFIG_USE_PID)
+#define PL_CONFIG_APP_LINE_FOLLOWING  (0 && PL_CONFIG_USE_LINE_SENSOR && PL_CONFIG_USE_PID)
+#define PL_CONFIG_APP_LINE_MAZE       (1 && PL_CONFIG_USE_LINE_SENSOR && PL_CONFIG_USE_PID)
 #define PL_CONFIG_APP_SUMO            (0)
 
 #define PL_SLOWER_SPEED               (1) /* PID, Sumo, LineFollow & Maze */