diff --git a/mission/devices/ScexDeviceHandler.cpp b/mission/devices/ScexDeviceHandler.cpp
index fe948a7e..8b80bc0e 100644
--- a/mission/devices/ScexDeviceHandler.cpp
+++ b/mission/devices/ScexDeviceHandler.cpp
@@ -1,16 +1,16 @@
 #include "ScexDeviceHandler.h"
 
+#include <linux/devices/ScexHelper.h>
+
 #include <algorithm>
 
-#include "mission/devices/devicedefinitions/ScexDefinitions.h"
 #include "fsfw/globalfunctions/CRC.h"
-#include <linux/devices/ScexHelper.h>
+#include "mission/devices/devicedefinitions/ScexDefinitions.h"
 
 ScexDeviceHandler::ScexDeviceHandler(object_id_t objectId, ScexUartReader& reader, CookieIF* cookie)
- : DeviceHandlerBase(objectId, reader.getObjectId(),cookie), reader(reader)
-{
+    : DeviceHandlerBase(objectId, reader.getObjectId(), cookie), reader(reader) {}
 
-}
+ScexDeviceHandler::~ScexDeviceHandler() {}
 
 void ScexDeviceHandler::doStartUp() {
   // mode on
@@ -27,9 +27,9 @@ ReturnValue_t ScexDeviceHandler::buildTransitionDeviceCommand(DeviceCommandId_t*
   return RETURN_OK;
 }
 
-ReturnValue_t ScexDeviceHandler::buildCommandFromCommand(DeviceCommandId_t deviceCommand,
-                                                         const uint8_t* commandData,
-                                                         size_t commandDataLen) {
+ReturnValue_t ScexDeviceHandler::buildCommandFromCommand(
+    scex::Cmds deviceCommand,  // DeviceCommandId_t
+    const uint8_t* commandData, size_t commandDataLen) {
   using namespace scex;
 
   if (not std::find(VALID_CMDS.begin(), VALID_CMDS.end(), deviceCommand) != VALID_CMDS.end()) {
@@ -96,17 +96,25 @@ void ScexDeviceHandler::fillCommandAndReplyMap() {
 
 ReturnValue_t ScexDeviceHandler::scanForReply(const uint8_t* start, size_t remainingSize,
                                               DeviceCommandId_t* foundId, size_t* foundLen) {
-	//helper.deSerialize(blabla);
-	//crc check
+  uint8_t* decodedPacket = nullptr;
+  size_t len = 0;
 
-   *foundId = helper.getCmd();
-		   *foundLen = remainingSize;
+  const uint8_t* helperPtr = decodedPacket;
+  ReturnValue_t result = helper.deSerialize(&helperPtr, &len);
+  if (result == ScexHelper::INVALID_CRC) {
+    sif::warning << "CRC invalid" << std::endl;
+  }
+  sif::info << helper << std::endl;
+  // crc check
+
+  *foundId = helper.getCmd();
+  *foundLen = remainingSize;
 
   return RETURN_OK;
 }
 
 ReturnValue_t ScexDeviceHandler::interpretDeviceReply(DeviceCommandId_t id, const uint8_t* packet) {
-	//cmd auswertung (in file reinschreiben)
+  // cmd auswertung (in file reinschreiben)
   return RETURN_OK;
 }
 
@@ -123,6 +131,4 @@ ReturnValue_t ScexDeviceHandler::initializeLocalDataPool(localpool::DataPool& lo
   return RETURN_OK;
 }
 
-
-
 void ScexDeviceHandler::modeChanged() {}
diff --git a/mission/devices/ScexDeviceHandler.h b/mission/devices/ScexDeviceHandler.h
index 5058ed3b..f5a46971 100644
--- a/mission/devices/ScexDeviceHandler.h
+++ b/mission/devices/ScexDeviceHandler.h
@@ -7,8 +7,10 @@
 
 class ScexDeviceHandler : public DeviceHandlerBase {
  public:
-	// ctor vervollständigen
- ScexDeviceHandler(object_id_t objectId, ScexUartReader& reader, CookieIF* cookie);
+  // ctor vervollständigen
+  ScexDeviceHandler(object_id_t objectId, ScexUartReader &reader, CookieIF *cookie);
+  virtual ~ScexDeviceHandler();
+
  private:
   std::array<uint8_t, 64> cmdBuf = {};
 
@@ -16,10 +18,10 @@ class ScexDeviceHandler : public DeviceHandlerBase {
   void doStartUp() override;
   void doShutDown() override;
   ScexHelper helper;
-  ScexUartReader& reader;
+  ScexUartReader &reader;
   ReturnValue_t buildNormalDeviceCommand(DeviceCommandId_t *id) override;
   ReturnValue_t buildTransitionDeviceCommand(DeviceCommandId_t *id) override;
-  ReturnValue_t buildCommandFromCommand(DeviceCommandId_t deviceCommand, const uint8_t *commandData,
+  ReturnValue_t buildCommandFromCommand(scex::Cmds deviceCommand, const uint8_t *commandData,
                                         size_t commandDataLen) override;
   void fillCommandAndReplyMap() override;
   ReturnValue_t scanForReply(const uint8_t *start, size_t remainingSize, DeviceCommandId_t *foundId,