diff --git a/firmware/config/boards/hellen/hellen_common.cpp b/firmware/config/boards/hellen/hellen_common.cpp
index 5eb9a0a369..1852fe106a 100644
--- a/firmware/config/boards/hellen/hellen_common.cpp
+++ b/firmware/config/boards/hellen/hellen_common.cpp
@@ -64,13 +64,12 @@ void hellenBoardStandBy() {
  * 2) SD card initialization
  * 3) accelerometer main initialization if accelerometer feature is desired
  */
+extern OutputPin accelerometerChipSelect;
+
 void hellenMegaAccelerometerPreInitCS2Pin() {
-    static bool initialized = false;
-    static OutputPin cs2pin;
-    if (!initialized) {
-        initialized = true;
-	    cs2pin.initPin("mm-CS2", Gpio::H_SPI1_CS2);
-	    cs2pin.setValue(1);
+    if (!accelerometerChipSelect.isInitialized()) {
+	    accelerometerChipSelect.initPin("mm-CS2", Gpio::H_SPI1_CS2);
+	    accelerometerChipSelect.setValue(1);
 	}
 }
 
diff --git a/firmware/hw_layer/sensors/accelerometer.cpp b/firmware/hw_layer/sensors/accelerometer.cpp
index b7cc55c723..75028f9318 100644
--- a/firmware/hw_layer/sensors/accelerometer.cpp
+++ b/firmware/hw_layer/sensors/accelerometer.cpp
@@ -56,10 +56,7 @@ static SPIConfig accelerometerSpiCfg = {
 	.cr2 = SPI_CR2_8BIT_MODE
 };
 
-
-#ifndef HW_HELLEN
-	static OutputPin chipSelect;
-#endif
+OutputPin accelerometerChipSelect;
 
 #if (EFI_ONBOARD_MEMS_LIS2DW12 == TRUE)
 
@@ -223,10 +220,11 @@ void initAccelerometer() {
 		return;
 	}
 
-	/* Commented until we have hellenMegaAccelerometerPreInitCS2Pin() */
-	#ifndef HW_HELLEN
-		chipSelect.initPin("SPI Acc", engineConfiguration->accelerometerCsPin);
-	#endif
+	/* so far only Hellen boards share SPI device for SD card and accelerometer
+	 * thus need to make sure CS pin is in a well known proper state */
+  if (!accelerometerChipSelect.isInitialized()) {
+		accelerometerChipSelect.initPin("SPI Acc", engineConfiguration->accelerometerCsPin);
+	}
 	accelerometerSpiCfg.ssport = getHwPort("SPI Acc", engineConfiguration->accelerometerCsPin);
 	accelerometerSpiCfg.sspad = getHwPin("SPI Acc", engineConfiguration->accelerometerCsPin);