diff --git a/ESPMegaPRO-OS-SDK/lib/ESPMegaPRO/ESPMegaDisplay.cpp b/ESPMegaPRO-OS-SDK/lib/ESPMegaPRO/ESPMegaDisplay.cpp
index e80c924..21a4303 100644
--- a/ESPMegaPRO-OS-SDK/lib/ESPMegaPRO/ESPMegaDisplay.cpp
+++ b/ESPMegaPRO-OS-SDK/lib/ESPMegaPRO/ESPMegaDisplay.cpp
@@ -507,7 +507,7 @@ void ESPMegaDisplay::reset()
  * @brief Constructor for the ESPMegaDisplay class.
  * @param displayAdapter The serial adapter connected to the display.
  */
-ESPMegaDisplay::ESPMegaDisplay(HardwareSerial *displayAdapter, uint16_t baudRate, uint16_t uploadBaudRate, uint8_t txPin, uint8_t rxPin)
+ESPMegaDisplay::ESPMegaDisplay(HardwareSerial *displayAdapter, uint32_t baudRate, uint32_t uploadBaudRate, uint8_t txPin, uint8_t rxPin)
 {
     this->baudRate = baudRate;
     this->uploadBaudRate = uploadBaudRate;
@@ -657,7 +657,7 @@ bool ESPMegaDisplay::beginUpdate(size_t size)
  * @note The baud rate that is used to transfer the data is defined by the uploadBaudRate parameter in the constructor.
  * @return True if the OTA update is started, false otherwise.
  */
-bool ESPMegaDisplay::beginUpdate(size_t size, uint16_t baudRate)
+bool ESPMegaDisplay::beginUpdate(size_t size, uint32_t baudRate)
 {
     if (xSemaphoreTake(this->serialMutex, DISPLAY_MUTEX_TAKE_TIMEOUT) == pdFALSE)
     {
diff --git a/ESPMegaPRO-OS-SDK/lib/ESPMegaPRO/ESPMegaDisplay.hpp b/ESPMegaPRO-OS-SDK/lib/ESPMegaPRO/ESPMegaDisplay.hpp
index 2337942..3a24707 100644
--- a/ESPMegaPRO-OS-SDK/lib/ESPMegaPRO/ESPMegaDisplay.hpp
+++ b/ESPMegaPRO-OS-SDK/lib/ESPMegaPRO/ESPMegaDisplay.hpp
@@ -17,7 +17,7 @@
 class ESPMegaDisplay
 {
     public:
-        ESPMegaDisplay(HardwareSerial *displayAdapter, uint16_t baudRate, uint16_t uploadBaudRate, uint8_t txPin, uint8_t rxPin);
+        ESPMegaDisplay(HardwareSerial *displayAdapter, uint32_t baudRate, uint32_t uploadBaudRate, uint8_t txPin, uint8_t rxPin);
         void begin();
         void loop();
         void reset();
@@ -39,13 +39,13 @@ class ESPMegaDisplay
         void giveSerialMutex();
         SemaphoreHandle_t serialMutex;
         bool beginUpdate(size_t size);
-        bool beginUpdate(size_t size, uint16_t baudRate);
+        bool beginUpdate(size_t size, uint32_t baudRate);
         bool writeUpdate(uint8_t* data, size_t size);
         void endUpdate();
         size_t getUpdateBytesWritten();
     protected:
-        uint16_t baudRate;
-        uint16_t uploadBaudRate;
+        uint32_t baudRate;
+        uint32_t uploadBaudRate;
         uint8_t txPin;
         uint8_t rxPin;
         size_t otaBytesWritten;
diff --git a/ESPMegaPRO-OS-SDK/lib/ESPMegaPRO/InternalDisplay.cpp b/ESPMegaPRO-OS-SDK/lib/ESPMegaPRO/InternalDisplay.cpp
index a847b63..2fc8efa 100644
--- a/ESPMegaPRO-OS-SDK/lib/ESPMegaPRO/InternalDisplay.cpp
+++ b/ESPMegaPRO-OS-SDK/lib/ESPMegaPRO/InternalDisplay.cpp
@@ -608,6 +608,7 @@ void InternalDisplay::refreshPWMAdjustmentId()
     this->displayAdapter->print(pmwAdjustmentPin);
     this->displayAdapter->print("\"");
     this->sendStopBytes();
+    this->giveSerialMutex();
 }
 
 /**