diff --git a/firmware/config/boards/hellen/alphax-4K-GDI/board_configuration.cpp b/firmware/config/boards/hellen/alphax-4K-GDI/board_configuration.cpp
index 6446fd05e2..c911b7bff7 100644
--- a/firmware/config/boards/hellen/alphax-4K-GDI/board_configuration.cpp
+++ b/firmware/config/boards/hellen/alphax-4K-GDI/board_configuration.cpp
@@ -67,7 +67,8 @@ static const tle9104_config tle9104_cfg[BOARD_TLE9104_COUNT] = {
 		},
 		.resn = Gpio::Unassigned,
 		.en   = Gpio::Unassigned
-	},
+	}
+/*	,
 	{
 		.spi_bus = &SPID2,
 		.spi_config = {
@@ -119,7 +120,9 @@ static const tle9104_config tle9104_cfg[BOARD_TLE9104_COUNT] = {
 		},
 		.resn = Gpio::Unassigned,
 		.en   = Gpio::Unassigned
-	}};
+	}
+*/
+	};
 
 /*PUBLIC_API_WEAK*/ void boardInitHardware() {
   setHellenMegaEnPin();
@@ -164,7 +167,7 @@ static const tle9104_config tle9104_cfg[BOARD_TLE9104_COUNT] = {
 	    csDcAux.setValue(1);
     }
 
-  initAll9104(tle9104_cfg);
+//  initAll9104(tle9104_cfg);
 }
 
 static Gpio OUTPUTS[] = {
diff --git a/firmware/hw_layer/mc33816.cpp b/firmware/hw_layer/mc33816.cpp
index 7760cd6bdd..6a6c8ed917 100644
--- a/firmware/hw_layer/mc33816.cpp
+++ b/firmware/hw_layer/mc33816.cpp
@@ -33,7 +33,7 @@ static SPIConfig spiCfg = {
         .data_cb = NULL,
         .error_cb = NULL,
 #endif
-		.ssport = NULL,
+		.ssport = nullptr,
 		.sspad = 0,
 		.cr1 =
 				SPI_CR1_16BIT_MODE |
@@ -49,6 +49,8 @@ public:
 
 protected:
 	void select() override {
+// revive MC33816 driver, also support bus sharing #6781
+// should be somewhere but not here 	  spiStart(driver, &spiCfg);
 		spiSelect(driver);
 	}
 
@@ -181,6 +183,7 @@ void Pt2001::init() {
 	}
 
 	chipSelect.initPin("mc33 CS", engineConfiguration->mc33816_cs /*, &engineConfiguration->csPinMode*/);
+	chipSelect.setValue(1);
 
 	// Initialize the chip via ResetB
 	resetB.initPin("mc33 RESTB", engineConfiguration->mc33816_rstb);