diff --git a/scripts/autoupdate-bash.sh b/scripts/autoupdate-bash.sh
index a1fbe1d..705d4be 100644
--- a/scripts/autoupdate-bash.sh
+++ b/scripts/autoupdate-bash.sh
@@ -81,7 +81,7 @@ echo -e '\e[92m开始写入，请勿中断...\e[0m'
 if [ -f FriendlyWrt.img ]; then
 	echo 1 > /proc/sys/kernel/sysrq
 	echo u > /proc/sysrq-trigger && umount / || true
-	dd if=FriendlyWrt.img of=/dev/$block_device oflag=direct conv=sparse status=progress bs=1M
+	dd if=FriendlyWrt.img of=/dev/$block_device
 	echo -e '\e[92m刷机完毕，正在重启...\e[0m'
 	echo b > /proc/sysrq-trigger
 fi