diff --git a/src/defines.h b/src/defines.h
index 4d95b022..72f2887f 100644
--- a/src/defines.h
+++ b/src/defines.h
@@ -13,7 +13,7 @@
 //-------------------------------------
 #define VERSION_MAJOR       0
 #define VERSION_MINOR       8
-#define VERSION_PATCH       8
+#define VERSION_PATCH       9
 
 //-------------------------------------
 typedef struct {
diff --git a/src/hm/Communication.h b/src/hm/Communication.h
index ce2a7175..c599cadc 100644
--- a/src/hm/Communication.h
+++ b/src/hm/Communication.h
@@ -44,8 +44,8 @@ class Communication : public CommQueue<> {
                 if(!valid)
                     return; // empty
 
-                uint16_t timeout     = q->iv->ivGen != IV_MI ? (q->iv->mGotFragment && q->iv->mGotLastMsg) ? SINGLEFR_TIMEOUT : DEFAULT_TIMEOUT : MI_TIMEOUT;
-                uint16_t timeout_min = q->iv->ivGen != IV_MI ? q->iv->mGotFragment ? SINGLEFR_TIMEOUT : FRSTMSG_TIMEOUT : MI_TIMEOUT;
+                uint16_t timeout     = q->iv->ivGen != IV_MI ? ((q->iv->mGotFragment && q->iv->mGotLastMsg) ? SINGLEFR_TIMEOUT : DEFAULT_TIMEOUT) : MI_TIMEOUT;
+                uint16_t timeout_min = q->iv->ivGen != IV_MI ? ((q->iv->mGotFragment) ? SINGLEFR_TIMEOUT : FRSTMSG_TIMEOUT) : MI_TIMEOUT;
                 bool testMode = false;
 
                 switch(mState) {
@@ -63,7 +63,7 @@ class Communication : public CommQueue<> {
                         testMode = mHeu.getTestModeEnabled();
                         q->iv->mGotFragment = false;
                         q->iv->mGotLastMsg = false;
-                        mFirstTry = mFirstTry ? false : ( ( (IV_HM == q->iv->ivGen) || (IV_MI == q->iv->ivGen) ) && (q->iv->isAvailable()) || (millis() < 120000) );
+                        mFirstTry = mFirstTry ? false : (((IV_HM == q->iv->ivGen) || (IV_MI == q->iv->ivGen) ) && (q->iv->isAvailable()) || (millis() < 120000));
                         if(NULL == q->iv->radio)
                             cmdDone(true); // can't communicate while radio is not defined!
                         mState = States::START;
@@ -97,8 +97,8 @@ class Communication : public CommQueue<> {
                         if(millis() > mWaitTimeout_min) {
                             if(!q->iv->mGotFragment) { // nothing received yet?
                                 if(q->iv->mGotLastMsg) {
-                                        //mState = States::CHECK_FRAMES;
-                                        mWaitTimeout = mWaitTimeout_min;
+                                    //mState = States::CHECK_FRAMES;
+                                    mWaitTimeout = mWaitTimeout_min;
                                 }
                             } else if(mFirstTry) {
                                 DPRINT_IVID(DBG_INFO, q->iv->id);
diff --git a/src/hm/hmRadio.h b/src/hm/hmRadio.h
index d0a7b250..88e62f8f 100644
--- a/src/hm/hmRadio.h
+++ b/src/hm/hmRadio.h
@@ -309,10 +309,8 @@ class HmRadio : public Radio {
         }
 
         inline bool checkIvSerial(uint8_t buf[], Inverter<> *iv) {
-            uint8_t tmp[4];
-            CP_U32_BigEndian(tmp, iv->radioId.u64 >> 8);
             for(uint8_t i = 0; i < 4; i++) {
-                if(tmp[i] != buf[i])
+                if(buf[3-i] != iv->radioId.b[i])
                     return false;
             }
             return true;