diff --git a/src/Display/OLEDDisplay.cpp b/src/Display/OLEDDisplay.cpp
index 98117f4..870acbe 100644
--- a/src/Display/OLEDDisplay.cpp
+++ b/src/Display/OLEDDisplay.cpp
@@ -37,39 +37,32 @@ OLEDDisplay::OLEDDisplay(OLEDDISPLAY_GEOMETRY g) : _geometry(g), _displayIsOn(fa
 OLEDDisplay::~OLEDDisplay() {
 }
 
-// cppcheck-suppress unusedFunction
 void OLEDDisplay::displayOn() {
   sendCommand(DISPLAYON);
   _displayIsOn = true;
 }
 
-// cppcheck-suppress unusedFunction
 bool OLEDDisplay::isDisplayOn() const {
   return _displayIsOn;
 }
 
-// cppcheck-suppress unusedFunction
 void OLEDDisplay::displayOff() {
   sendCommand(DISPLAYOFF);
   _displayIsOn = false;
 }
 
-// cppcheck-suppress unusedFunction
 bool OLEDDisplay::isDisplayOff() const {
   return !_displayIsOn;
 }
 
-// cppcheck-suppress unusedFunction
 void OLEDDisplay::invertDisplay() {
   sendCommand(INVERTDISPLAY);
 }
 
-// cppcheck-suppress unusedFunction
 void OLEDDisplay::normalDisplay() {
   sendCommand(NORMALDISPLAY);
 }
 
-// cppcheck-suppress unusedFunction
 void OLEDDisplay::setContrast(uint8_t contrast, uint8_t precharge, uint8_t comdetect) {
   sendCommand(SETPRECHARGE); // 0xD9
   sendCommand(precharge);    // 0xF1 default, to lower the contrast, put 1-1F
@@ -82,7 +75,6 @@ void OLEDDisplay::setContrast(uint8_t contrast, uint8_t precharge, uint8_t comde
   sendCommand(DISPLAYON);
 }
 
-// cppcheck-suppress unusedFunction
 void OLEDDisplay::setBrightness(uint8_t brightness) {
   uint8_t contrast = brightness * 1.171 - 43;
   if (brightness < 128) {
@@ -98,19 +90,16 @@ void OLEDDisplay::setBrightness(uint8_t brightness) {
   setContrast(contrast, precharge, comdetect);
 }
 
-// cppcheck-suppress unusedFunction
 void OLEDDisplay::resetOrientation() {
   sendCommand(SEGREMAP);
   sendCommand(COMSCANINC);
 }
 
-// cppcheck-suppress unusedFunction
 void OLEDDisplay::flipScreenVertically() {
   sendCommand(SEGREMAP | 0x01);
   sendCommand(COMSCANDEC);
 }
 
-// cppcheck-suppress unusedFunction
 void OLEDDisplay::mirrorScreen() {
   sendCommand(SEGREMAP);
   sendCommand(COMSCANDEC);
@@ -123,11 +112,9 @@ void OLEDDisplay::display(Bitmap *bitmap) {
   internDisplay(bitmap);
 }
 
-// cppcheck-suppress unusedFunction
 void OLEDDisplay::clear() {
 }
 
-// cppcheck-suppress unusedFunction
 uint OLEDDisplay::getWidth() {
   switch (_geometry) {
   case GEOMETRY_128_64:
@@ -140,7 +127,6 @@ uint OLEDDisplay::getWidth() {
   return 0;
 }
 
-// cppcheck-suppress unusedFunction
 uint OLEDDisplay::getHeight() {
   switch (_geometry) {
   case GEOMETRY_128_64:
@@ -154,7 +140,6 @@ uint OLEDDisplay::getHeight() {
   return 0;
 }
 
-// cppcheck-suppress unusedFunction
 void OLEDDisplay::sendInitCommands() {
   sendCommand(DISPLAYOFF);
   sendCommand(SETDISPLAYCLOCKDIV);
diff --git a/src/PowerManagement/power_management.cpp b/src/PowerManagement/power_management.cpp
index f93a7a1..99037be 100644
--- a/src/PowerManagement/power_management.cpp
+++ b/src/PowerManagement/power_management.cpp
@@ -16,12 +16,10 @@ void PowerManagement::activateLoRa() {
   axp.setPowerOutPut(AXP192_LDO2, AXP202_ON);
 }
 
-// cppcheck-suppress unusedFunction
 void PowerManagement::deactivateLoRa() {
   axp.setPowerOutPut(AXP192_LDO2, AXP202_OFF);
 }
 
-// cppcheck-suppress unusedFunction
 void PowerManagement::activateGPS() {
   axp.setPowerOutPut(AXP192_LDO3, AXP202_ON);
 }
@@ -34,7 +32,6 @@ void PowerManagement::activateOLED() {
   axp.setPowerOutPut(AXP192_DCDC1, AXP202_ON);
 }
 
-// cppcheck-suppress unusedFunction
 void PowerManagement::deactivateOLED() {
   axp.setPowerOutPut(AXP192_DCDC1, AXP202_OFF);
 }
diff --git a/src/System/TaskManager.cpp b/src/System/TaskManager.cpp
index 16a819f..e84fb00 100644
--- a/src/System/TaskManager.cpp
+++ b/src/System/TaskManager.cpp
@@ -48,7 +48,6 @@ bool TaskManager::loop(System &system) {
   return ret;
 }
 
-// cppcheck-suppress unusedFunction
 void StatusFrame::drawStatusPage(Bitmap &bitmap) {
   int y = 0;
   for (Task const *const task : _tasks) {
diff --git a/src/System/Timer.cpp b/src/System/Timer.cpp
index 4fb9e9f..ebd17f6 100644
--- a/src/System/Timer.cpp
+++ b/src/System/Timer.cpp
@@ -13,12 +13,10 @@ uint32_t Timer::getTriggerTimeInSec() const {
   return (_nextTimeout - millis()) / 1000;
 }
 
-// cppcheck-suppress unusedFunction
 bool Timer::isActive() const {
   return _nextTimeout != 0;
 }
 
-// cppcheck-suppress unusedFunction
 void Timer::reset() {
   _nextTimeout = 0;
 }