diff --git a/br-ext-chip-sigmastar/board/infinity6e/kernel/patches/01_infinity6e_kernel_4.9.84_sdk-python3_support.patch b/br-ext-chip-sigmastar/board/infinity6e/kernel/patches/01_infinity6e_kernel_4.9.84_sdk-python3_support.patch
new file mode 100644
index 00000000..9c1be9c8
--- /dev/null
+++ b/br-ext-chip-sigmastar/board/infinity6e/kernel/patches/01_infinity6e_kernel_4.9.84_sdk-python3_support.patch
@@ -0,0 +1,43 @@
+diff --git a/scripts/ms_bin_option_update_int.py b/scripts/ms_bin_option_update_int.py
+index a515e5e872af..a538d1903802 100755
+--- a/scripts/ms_bin_option_update_int.py
++++ b/scripts/ms_bin_option_update_int.py
+@@ -6,13 +6,13 @@ if __name__ == '__main__':
+ 
+     name=sys.argv[2]
+     if sys.argv[3].upper().startswith( '0X' ):
+-        value=long(sys.argv[3],16)
++        value=int(sys.argv[3],16)
+     else:
+-        value=long(sys.argv[3])
++        value=int(sys.argv[3])
+ 
+     fmap=mmap.mmap(os.open(sys.argv[1],os.O_RDWR),0)
+ 
+-    offset=fmap.find(name)
++    offset=fmap.find(name.encode())
+ #    print ('%s:%d\n' % (name,offset))
+     if offset < 0:
+         print ('error finding ms_bin_option:%s in %s\n' % (name,sys.argv[1]))
+diff --git a/scripts/ms_builtin_dtb_update.py b/scripts/ms_builtin_dtb_update.py
+index 787ab98e4747..9214d9a79ad0 100755
+--- a/scripts/ms_builtin_dtb_update.py
++++ b/scripts/ms_builtin_dtb_update.py
+@@ -6,7 +6,7 @@ if __name__ == '__main__':
+     
+     name='#MS_DTB#'
+  
+-    dtb_file=open(sys.argv[2])
++    dtb_file=open(sys.argv[2], 'rb')
+     dtb_file.seek(0,os.SEEK_END)
+     size=dtb_file.tell()
+     dtb_file.seek(0,os.SEEK_SET)
+@@ -19,7 +19,7 @@ if __name__ == '__main__':
+         
+     fmap=mmap.mmap(os.open(sys.argv[1],os.O_RDWR),0)
+ 
+-    offset=fmap.find(name)    
++    offset=fmap.find(name.encode())
+     if offset >=0:
+         print ('offset:0x%08X' % offset)
+         print ('  size:0x%08X' % size )
diff --git a/br-ext-chip-sigmastar/configs/ssc338q_sdcard_defconfig b/br-ext-chip-sigmastar/configs/ssc338q_sdcard_defconfig
index 3858bee5..4bfec41f 100644
--- a/br-ext-chip-sigmastar/configs/ssc338q_sdcard_defconfig
+++ b/br-ext-chip-sigmastar/configs/ssc338q_sdcard_defconfig
@@ -76,7 +76,6 @@ BR2_PACKAGE_OPUS_OPENIPC=y
 BR2_PACKAGE_OPUS_OPENIPC_FIXED_POINT=y
 BR2_PACKAGE_SIGMASTAR_OSDRV_INFINITY6E=y
 BR2_PACKAGE_SIGMASTAR_OSDRV_SENSOR="imx415"
-BR2_PACKAGE_SIGMASTAR_SENSOR_OPENIPC=y
 BR2_PACKAGE_DOSFSTOOLS=y
 BR2_PACKAGE_DOSFSTOOLS_FSCK_FAT=y
 # BR2_PACKAGE_SSHPASS is not set
diff --git a/br-ext-chip-sigmastar/linux/linux-ext-sigmastar_initramfs.mk b/br-ext-chip-sigmastar/linux/linux-ext-sigmastar_initramfs.mk
index 2d26bebd..1431962c 100644
--- a/br-ext-chip-sigmastar/linux/linux-ext-sigmastar_initramfs.mk
+++ b/br-ext-chip-sigmastar/linux/linux-ext-sigmastar_initramfs.mk
@@ -14,29 +14,31 @@ SIGMASTAR_INITRAMFS_DOSFSTOOLS_VERSION = 4.2
 SIGMASTAR_INITRAMFS_DOSFSTOOLS_SOURCE = dosfstools-$(SIGMASTAR_INITRAMFS_DOSFSTOOLS_VERSION).tar.gz
 SIGMASTAR_INITRAMFS_DOSFSTOOLS_SITE = https://github.com/dosfstools/dosfstools/releases/download/v$(SIGMASTAR_INITRAMFS_DOSFSTOOLS_VERSION)
 
+SIGMASTAR_INITRAMFS_TOOLCHAIN_SOURCE = cortex_a7_thumb2_hf-gcc8.4.0-musl-4_9-1e913a17.tgz
+SIGMASTAR_INITRAMFS_TOOLCHAIN_SITE = https://github.com/openipc/firmware/releases/download/latest
+
 SIGMASTAR_INITRAMFS_BUSYBOX_PATH = $(HOST_DIR)/source/busybox-$(SIGMASTAR_INITRAMFS_BUSYBOX_VERSION)
 SIGMASTAR_INITRAMFS_DOSFSTOOLS_PATH = $(HOST_DIR)/source/dosfstools-$(SIGMASTAR_INITRAMFS_DOSFSTOOLS_VERSION)
-SIGMASTAR_INITRAMFS_TOOLCHAIN = $(PER_PACKAGE_DIR)/toolchain/host/bin/$(GNU_TARGET_NAME)-gcc
+SIGMASTAR_INITRAMFS_TOOLCHAIN_PATH = $(HOST_DIR)/source/arm-openipc-linux-musleabihf_sdk-buildroot/bin
 
 define SIGMASTAR_INITRAMFS_PREPARE_KERNEL
 	mkdir -p $(LINUX_DIR)/initramfs
 	cp -f $(SIGMASTAR_INITRAMFS_PKGDIR)/files/* $(LINUX_DIR)/initramfs
 
-	wget $(SIGMASTAR_INITRAMFS_BUSYBOX_SITE)/$(SIGMASTAR_INITRAMFS_BUSYBOX_SOURCE) \
-		-P $(HOST_DIR)/source -c
+	wget $(SIGMASTAR_INITRAMFS_BUSYBOX_SITE)/$(SIGMASTAR_INITRAMFS_BUSYBOX_SOURCE) -P $(HOST_DIR)/source -c
 	tar -xf $(HOST_DIR)/source/$(SIGMASTAR_INITRAMFS_BUSYBOX_SOURCE) -C $(HOST_DIR)/source
 
-	wget $(SIGMASTAR_INITRAMFS_DOSFSTOOLS_SITE)/$(SIGMASTAR_INITRAMFS_DOSFSTOOLS_SOURCE) \
-		-P $(HOST_DIR)/source -c
+	wget $(SIGMASTAR_INITRAMFS_DOSFSTOOLS_SITE)/$(SIGMASTAR_INITRAMFS_DOSFSTOOLS_SOURCE) -P $(HOST_DIR)/source -c
 	tar -xf $(HOST_DIR)/source/$(SIGMASTAR_INITRAMFS_DOSFSTOOLS_SOURCE) -C $(HOST_DIR)/source
 
-	cp -f $(SIGMASTAR_INITRAMFS_PKGDIR)/files/initramfs_defconfig \
-		$(SIGMASTAR_INITRAMFS_BUSYBOX_PATH)/.config
-	$(MAKE) CC=$(SIGMASTAR_INITRAMFS_TOOLCHAIN) -C $(SIGMASTAR_INITRAMFS_BUSYBOX_PATH)
+	wget $(SIGMASTAR_INITRAMFS_TOOLCHAIN_SITE)/$(SIGMASTAR_INITRAMFS_TOOLCHAIN_SOURCE) -P $(HOST_DIR)/source -c
+	tar -xf $(HOST_DIR)/source/$(SIGMASTAR_INITRAMFS_TOOLCHAIN_SOURCE) -C $(HOST_DIR)/source
+
+	cp -f $(SIGMASTAR_INITRAMFS_PKGDIR)/files/initramfs_defconfig $(SIGMASTAR_INITRAMFS_BUSYBOX_PATH)/.config
+	$(MAKE) CROSS_COMPILE=$(SIGMASTAR_INITRAMFS_TOOLCHAIN_PATH)/arm-linux- -C $(SIGMASTAR_INITRAMFS_BUSYBOX_PATH)
 	cp -f $(SIGMASTAR_INITRAMFS_BUSYBOX_PATH)/busybox $(LINUX_DIR)/initramfs
 
 	cd $(SIGMASTAR_INITRAMFS_DOSFSTOOLS_PATH) && ./autogen.sh && ./configure
-	$(MAKE) CC=$(SIGMASTAR_INITRAMFS_TOOLCHAIN) CFLAGS="-static -s" \
-		-C $(SIGMASTAR_INITRAMFS_DOSFSTOOLS_PATH)
+	$(MAKE) CC=$(SIGMASTAR_INITRAMFS_TOOLCHAIN_PATH)/arm-linux-gcc CFLAGS="-static -s" -C $(SIGMASTAR_INITRAMFS_DOSFSTOOLS_PATH)
 	cp -f $(SIGMASTAR_INITRAMFS_DOSFSTOOLS_PATH)/src/fsck.fat $(LINUX_DIR)/initramfs
 endef