diff --git a/device/config/chips/v851s/configs/fastboot_sl100_back/board.dts b/device/config/chips/v851s/configs/fastboot_sl100_back/board.dts
index b6c95f8cd..66bfad901 100755
--- a/device/config/chips/v851s/configs/fastboot_sl100_back/board.dts
+++ b/device/config/chips/v851s/configs/fastboot_sl100_back/board.dts
@@ -1477,8 +1477,8 @@
 	/* pa-pin-0	= <&pio PE 11 1 1 1 0>; */
 	pa-pin-level-0	= <1>;
 	pa-pin-msleep-0	= <0>;
-	// tx-hub-en;
-	// rx-sync-en;
+	tx-hub-en;
+	rx-sync-en;
 	status		= "okay";
 };
 
@@ -1528,8 +1528,8 @@
 	/* pinctrl-names= "default","sleep"; */
 	/* pinctrl-0	= <&daudio0_pins_a>; */
 	/* pinctrl-1	= <&daudio0_pins_b>; */
-	// tx-hub-en;
-	// rx-sync-en;
+	tx-hub-en;
+	rx-sync-en;
 	status		= "okay";
 };
 
diff --git a/device/config/chips/v851s/configs/fastboot_sl100_back/linux/config-4.9 b/device/config/chips/v851s/configs/fastboot_sl100_back/linux/config-4.9
index 21e298be3..2697807d9 100755
--- a/device/config/chips/v851s/configs/fastboot_sl100_back/linux/config-4.9
+++ b/device/config/chips/v851s/configs/fastboot_sl100_back/linux/config-4.9
@@ -2124,7 +2124,9 @@ CONFIG_SND_SOC_SUNXI_SUN8IW21_CODEC=m
 CONFIG_SND_SOC_SUNXI_AAUDIO=m
 # CONFIG_SND_SOC_SUNXI_DMIC is not set
 CONFIG_SND_SOC_SUNXI_DAUDIO=m
-# CONFIG_SND_SOC_SUNXI_COMPONENTS is not set
+CONFIG_SND_SOC_SUNXI_COMPONENTS=m
+CONFIG_SND_SOC_SUNXI_RXSYNC=m
+# CONFIG_SND_SOC_SUNXI_DEBUG is not set
 # CONFIG_SND_SOC_XTFPGA_I2S is not set
 CONFIG_SND_SOC_I2C_AND_SPI=m
 
diff --git a/target/allwinner/v851s-fastboot_sl100_back/busybox-init-base-files/etc/init.d/S00mpp b/target/allwinner/v851s-fastboot_sl100_back/busybox-init-base-files/etc/init.d/S00mpp
index 0cdfec79b..b34473d42 100755
--- a/target/allwinner/v851s-fastboot_sl100_back/busybox-init-base-files/etc/init.d/S00mpp
+++ b/target/allwinner/v851s-fastboot_sl100_back/busybox-init-base-files/etc/init.d/S00mpp
@@ -32,7 +32,7 @@ start() {
 	insmod $MODULES_DIR/snd-pcm-dmaengine.ko
 	insmod $MODULES_DIR/snd-soc-core.ko
 	insmod $MODULES_DIR/snd_soc_sunxi_pcm.ko
-	# insmod $MODULES_DIR/snd_soc_sunxi_component_rxsync.ko
+	insmod $MODULES_DIR/snd_soc_sunxi_component_rxsync.ko
 	insmod $MODULES_DIR/snd_soc_sunxi_aaudio.ko
 	insmod $MODULES_DIR/snd_soc_sunxi_daudio.ko
 	insmod $MODULES_DIR/snd_soc_sunxi_internal_codec.ko
diff --git a/target/allwinner/v851s-fastboot_sl100_back/modules.mk b/target/allwinner/v851s-fastboot_sl100_back/modules.mk
index 10932eefa..a7d597256 100755
--- a/target/allwinner/v851s-fastboot_sl100_back/modules.mk
+++ b/target/allwinner/v851s-fastboot_sl100_back/modules.mk
@@ -156,13 +156,13 @@ define KernelPackage/audio
   FILES+=$(LINUX_DIR)/sound/soc/sunxi_v2/snd_soc_sunxi_aaudio.ko
   FILES+=$(LINUX_DIR)/sound/soc/sunxi_v2/snd_soc_sunxi_machine.ko
   FILES+=$(LINUX_DIR)/sound/soc/sunxi_v2/snd_soc_sunxi_internal_codec.ko
-  # FILES+=$(LINUX_DIR)/sound/soc/sunxi_v2/snd_soc_sunxi_component_rxsync.ko
+  FILES+=$(LINUX_DIR)/sound/soc/sunxi_v2/snd_soc_sunxi_component_rxsync.ko
   FILES+=$(LINUX_DIR)/sound/soc/sunxi_v2/snd_soc_sunxi_daudio.ko
   FILES+=$(LINUX_DIR)/sound/core/snd-pcm-dmaengine.ko
   FILES+=$(LINUX_DIR)/sound/core/snd.ko
   FILES+=$(LINUX_DIR)/sound/core/snd-pcm.ko
   FILES+=$(LINUX_DIR)/sound/core/snd-timer.ko
-  AUTOLOAD:=$(call AutoProbe, soundcore.ko snd-soc-core.ko snd_soc_sunxi_pcm.ko snd_soc_sunxi_aaudio.ko snd_soc_sunxi_machine.ko snd_soc_sunxi_internal_codec.ko snd_soc_sunxi_daudio.ko snd-pcm-dmaengine.ko snd.ko snd-pcm.ko snd-timer.ko)
+  AUTOLOAD:=$(call AutoProbe, soundcore.ko snd-soc-core.ko snd_soc_sunxi_pcm.ko snd_soc_sunxi_aaudio.ko snd_soc_sunxi_machine.ko snd_soc_sunxi_internal_codec.ko snd_soc_sunxi_component_rxsync.ko snd_soc_sunxi_daudio.ko snd-pcm-dmaengine.ko snd.ko snd-pcm.ko snd-timer.ko)
 endef
 
 define KernelPackage/audio/description