diff --git a/radio/src/targets/taranis/bootloader/boot.cpp b/radio/src/targets/taranis/bootloader/boot.cpp
index 366544167..8567199e4 100755
--- a/radio/src/targets/taranis/bootloader/boot.cpp
+++ b/radio/src/targets/taranis/bootloader/boot.cpp
@@ -403,6 +403,7 @@ int main()
   backlightInit();
 
   lcd_clear();
+  lcd_putsn(0, 0, (const char *)bootloaderVersion, 0); // trick to avoid bootloaderVersion to be optimized out ...
   lcd_putsLeft(0, BOOTLOADER_TITLE);
   lcd_invert_line(0);
   lcdRefresh();
diff --git a/radio/src/targets/taranis/i2c_driver.cpp b/radio/src/targets/taranis/i2c_driver.cpp
index 747d3a2b4..03a622d3f 100644
--- a/radio/src/targets/taranis/i2c_driver.cpp
+++ b/radio/src/targets/taranis/i2c_driver.cpp
@@ -222,6 +222,7 @@ void eepromWaitEepromStandbyState(void)
   }
 }
 
+#if !defined(BOOT)
 void setVolume(uint8_t volume)
 {
   if (volume > VOLUME_LEVEL_MAX) {
@@ -248,6 +249,7 @@ void setVolume(uint8_t volume)
 
   I2C_GenerateSTOP(I2C, ENABLE);
 }
+#endif
 
 #if 0
 uint8_t I2C_read_volume()