diff --git a/src/displayapp/DisplayApp.cpp b/src/displayapp/DisplayApp.cpp
index 3bfaf2a2..05f171be 100644
--- a/src/displayapp/DisplayApp.cpp
+++ b/src/displayapp/DisplayApp.cpp
@@ -77,12 +77,14 @@ DisplayApp::DisplayApp(Drivers::St7789& lcd,
     motorController {motorController},
     motionController {motionController},
     timerController {timerController} {
-  msgQueue = xQueueCreate(queueSize, itemSize);
-  // Start clock when smartwatch boots
-  LoadApp(Apps::Clock, DisplayApp::FullRefreshDirections::None);
 }
 
 void DisplayApp::Start() {
+  msgQueue = xQueueCreate(queueSize, itemSize);
+
+  // Start clock when smartwatch boots
+  LoadApp(Apps::Clock, DisplayApp::FullRefreshDirections::None);
+
   if (pdPASS != xTaskCreate(DisplayApp::Process, "displayapp", 800, this, 0, &taskHandle)) {
     APP_ERROR_HANDLER(NRF_ERROR_NO_MEM);
   }
diff --git a/src/displayapp/DisplayAppRecovery.cpp b/src/displayapp/DisplayAppRecovery.cpp
index b73d0a85..fd517b11 100644
--- a/src/displayapp/DisplayAppRecovery.cpp
+++ b/src/displayapp/DisplayAppRecovery.cpp
@@ -21,10 +21,11 @@ DisplayApp::DisplayApp(Drivers::St7789& lcd,
                        Pinetime::Controllers::MotionController& motionController,
                        Pinetime::Controllers::TimerController& timerController)
   : lcd {lcd}, bleController {bleController} {
-  msgQueue = xQueueCreate(queueSize, itemSize);
+
 }
 
 void DisplayApp::Start() {
+  msgQueue = xQueueCreate(queueSize, itemSize);
   if (pdPASS != xTaskCreate(DisplayApp::Process, "displayapp", 512, this, 0, &taskHandle))
     APP_ERROR_HANDLER(NRF_ERROR_NO_MEM);
 }
diff --git a/src/displayapp/LittleVgl.cpp b/src/displayapp/LittleVgl.cpp
index 36df51b4..c069afa2 100644
--- a/src/displayapp/LittleVgl.cpp
+++ b/src/displayapp/LittleVgl.cpp
@@ -23,6 +23,10 @@ bool touchpad_read(lv_indev_drv_t* indev_drv, lv_indev_data_t* data) {
 
 LittleVgl::LittleVgl(Pinetime::Drivers::St7789& lcd, Pinetime::Drivers::Cst816S& touchPanel)
   : lcd {lcd}, touchPanel {touchPanel}, previousClick {0, 0} {
+
+}
+
+void LittleVgl::Init() {
   lv_init();
   InitTheme();
   InitDisplay();
diff --git a/src/displayapp/LittleVgl.h b/src/displayapp/LittleVgl.h
index 7f7b76e0..41f934a7 100644
--- a/src/displayapp/LittleVgl.h
+++ b/src/displayapp/LittleVgl.h
@@ -19,6 +19,8 @@ namespace Pinetime {
       LittleVgl(LittleVgl&&) = delete;
       LittleVgl& operator=(LittleVgl&&) = delete;
 
+      void Init();
+
       void FlushDisplay(const lv_area_t* area, lv_color_t* color_p);
       bool GetTouchPadInfo(lv_indev_data_t* ptr);
       void SetFullRefresh(FullRefreshDirections direction);
diff --git a/src/drivers/SpiMaster.cpp b/src/drivers/SpiMaster.cpp
index e2be5027..0d5bb83c 100644
--- a/src/drivers/SpiMaster.cpp
+++ b/src/drivers/SpiMaster.cpp
@@ -7,11 +7,14 @@
 using namespace Pinetime::Drivers;
 
 SpiMaster::SpiMaster(const SpiMaster::SpiModule spi, const SpiMaster::Parameters& params) : spi {spi}, params {params} {
-  mutex = xSemaphoreCreateBinary();
-  ASSERT(mutex != NULL);
 }
 
 bool SpiMaster::Init() {
+  if(mutex == nullptr) {
+    mutex = xSemaphoreCreateBinary();
+    ASSERT(mutex != nullptr);
+  }
+
   /* Configure GPIO pins used for pselsck, pselmosi, pselmiso and pselss for SPI0 */
   nrf_gpio_pin_set(params.pinSCK);
   nrf_gpio_cfg_output(params.pinSCK);
diff --git a/src/drivers/SpiMaster.h b/src/drivers/SpiMaster.h
index 5045369a..5ea624f2 100644
--- a/src/drivers/SpiMaster.h
+++ b/src/drivers/SpiMaster.h
@@ -59,7 +59,7 @@ namespace Pinetime {
       volatile uint32_t currentBufferAddr = 0;
       volatile size_t currentBufferSize = 0;
       volatile TaskHandle_t taskToNotify;
-      SemaphoreHandle_t mutex;
+      SemaphoreHandle_t mutex = nullptr;
     };
   }
 }
diff --git a/src/drivers/TwiMaster.cpp b/src/drivers/TwiMaster.cpp
index 7b6582dd..fc9edf81 100644
--- a/src/drivers/TwiMaster.cpp
+++ b/src/drivers/TwiMaster.cpp
@@ -9,10 +9,12 @@ using namespace Pinetime::Drivers;
 // TODO use DMA/IRQ
 
 TwiMaster::TwiMaster(const Modules module, const Parameters& params) : module {module}, params {params} {
-  mutex = xSemaphoreCreateBinary();
 }
 
 void TwiMaster::Init() {
+  if(mutex == nullptr)
+    mutex = xSemaphoreCreateBinary();
+  
   NRF_GPIO->PIN_CNF[params.pinScl] =
     ((uint32_t) GPIO_PIN_CNF_DIR_Input << GPIO_PIN_CNF_DIR_Pos) | ((uint32_t) GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) |
     ((uint32_t) GPIO_PIN_CNF_PULL_Pullup << GPIO_PIN_CNF_PULL_Pos) | ((uint32_t) GPIO_PIN_CNF_DRIVE_S0D1 << GPIO_PIN_CNF_DRIVE_Pos) |
diff --git a/src/drivers/TwiMaster.h b/src/drivers/TwiMaster.h
index 1c0648a2..6175b99b 100644
--- a/src/drivers/TwiMaster.h
+++ b/src/drivers/TwiMaster.h
@@ -31,7 +31,7 @@ namespace Pinetime {
       ErrorCodes Write(uint8_t deviceAddress, const uint8_t* data, size_t size, bool stop);
       void FixHwFreezed();
       NRF_TWIM_Type* twiBaseAddress;
-      SemaphoreHandle_t mutex;
+      SemaphoreHandle_t mutex = nullptr;
       const Modules module;
       const Parameters params;
       static constexpr uint8_t maxDataSize {16};
diff --git a/src/heartratetask/HeartRateTask.cpp b/src/heartratetask/HeartRateTask.cpp
index 1c21db71..fddc05d7 100644
--- a/src/heartratetask/HeartRateTask.cpp
+++ b/src/heartratetask/HeartRateTask.cpp
@@ -7,11 +7,12 @@ using namespace Pinetime::Applications;
 
 HeartRateTask::HeartRateTask(Drivers::Hrs3300& heartRateSensor, Controllers::HeartRateController& controller)
   : heartRateSensor {heartRateSensor}, controller {controller}, ppg{} {
-  messageQueue = xQueueCreate(10, 1);
-  controller.SetHeartRateTask(this);
 }
 
 void HeartRateTask::Start() {
+  messageQueue = xQueueCreate(10, 1);
+  controller.SetHeartRateTask(this);
+
   if (pdPASS != xTaskCreate(HeartRateTask::Process, "Heartrate", 500, this, 0, &taskHandle))
     APP_ERROR_HANDLER(NRF_ERROR_NO_MEM);
 }
diff --git a/src/main.cpp b/src/main.cpp
index 52ec9580..4c2c5de8 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -306,6 +306,8 @@ int main(void) {
   debounceTimer = xTimerCreate("debounceTimer", 200, pdFALSE, (void*) 0, DebounceTimerCallback);
   debounceChargeTimer = xTimerCreate("debounceTimerCharge", 200, pdFALSE, (void*) 0, DebounceTimerChargeCallback);
 
+  lvgl.Init();
+
   systemTask.Start();
   nimble_port_init();
 
diff --git a/src/systemtask/SystemTask.cpp b/src/systemtask/SystemTask.cpp
index 4799624a..38e9793c 100644
--- a/src/systemtask/SystemTask.cpp
+++ b/src/systemtask/SystemTask.cpp
@@ -81,10 +81,11 @@ SystemTask::SystemTask(Drivers::SpiMaster& spi,
     motionController{motionController},
     displayApp{displayApp},
     heartRateApp(heartRateApp) {
-  systemTasksMsgQueue = xQueueCreate(10, 1);
+
 }
 
 void SystemTask::Start() {
+  systemTasksMsgQueue = xQueueCreate(10, 1);
   if (pdPASS != xTaskCreate(SystemTask::Process, "MAIN", 350, this, 0, &taskHandle))
     APP_ERROR_HANDLER(NRF_ERROR_NO_MEM);
 }