diff --git a/src/ZoomH6.cpp b/src/ZoomH6.cpp
index bd3bd1e..66dbec9 100644
--- a/src/ZoomH6.cpp
+++ b/src/ZoomH6.cpp
@@ -7,7 +7,7 @@ ZoomH6Remote::ZoomH6Remote(HardwareSerial* serial, Stream* debug, uint32_t timeo
 
 /*This will write the data to the serial, and return the expected number of replys
   in case of failure the result is negative */
-int8_t ZoomH6Remote::writeWithReply(byte* data, size_t dataLength, byte* reply, size_t replyLength) {
+int8_t ZoomH6Remote::writeWithReply(const byte* data, size_t dataLength, byte* reply, size_t replyLength) {
   int8_t respCount = 0;
 
   for (int i = 0; i < dataLength; ++i) {
@@ -108,7 +108,7 @@ bool ZoomH6Remote::sendCommand(byte primary, byte secondary, uint32_t gap, byte*
 
   if (gap) delay(gap);
 
-  writeWithReply(releaseCom, 2, nullptr, 3);
+  if (!writeWithReply(releaseCom, 2, nullptr, 3)) return false;
 
   return true;
 }
diff --git a/src/ZoomH6.h b/src/ZoomH6.h
index 3853ef0..f529810 100644
--- a/src/ZoomH6.h
+++ b/src/ZoomH6.h
@@ -44,7 +44,7 @@ class ZoomH6Remote {
   bool sendCommand(byte primary, byte secondary, uint32_t gap, byte* reply = nullptr);
 
  private:
-  int8_t writeWithReply(byte* data, size_t dataLength, byte* reply, size_t replyLength);
+  int8_t writeWithReply(const byte* data, size_t dataLength, byte* reply, size_t replyLength);
   void printStatus(byte& high, byte& low);
 
   Stream* _debug;