diff --git a/bes2600/Makefile b/bes2600/Makefile
index 300912b..788aee2 100644
--- a/bes2600/Makefile
+++ b/bes2600/Makefile
@@ -66,7 +66,7 @@ BES2600_DRV_VERSION := bes2600_0.3.5_2024.0116
 ifeq ($(CONFIG_BES2600_CALIB_FROM_LINUX),y)
 FACTORY_CRC_CHECK                    ?= n
 STANDARD_FACTORY_EFUSE_FLAG          ?= y
-FACTORY_PATH                 ?= /lib/firmware/bes2600_factory.txt
+FACTORY_PATH                 ?= bes2600/bes2600_factory.txt
 endif
 
 # basic function
diff --git a/bes2600/bes2600_factory.c b/bes2600/bes2600_factory.c
index dc5d3da..8d60b7c 100644
--- a/bes2600/bes2600_factory.c
+++ b/bes2600/bes2600_factory.c
@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/fs.h>
+#include <linux/firmware.h>
 #include <linux/slab.h>
 #include <linux/mutex.h>
 #include <linux/crc32.h>
@@ -137,38 +138,32 @@ static int bes2600_factory_crc_check(struct factory_t *factory_data)
  */
 static int factory_section_read_file(char *path, void *buffer)
 {
-	int ret = 0;
-	struct file *fp;
+	const struct firmware *fw;
+	int ret;
 
 	if (!path || !buffer) {
 		bes_err("%s NULL pointer err\n", __func__);
 		return -1;
 	}
 
-	bes_devel("reading %s \n", path);
+	bes_devel("requesting firmware-class %s\n", path);
 
-	fp = filp_open(path, O_RDONLY, 0); //S_IRUSR
-	if (IS_ERR(fp)) {
-		bes_devel("BES2600 : can't open %s\n",path);
+	ret = request_firmware(&fw, path, NULL);
+	if (ret) {
+		bes_devel("BES2600: request_firmware(%s) failed: %d\n", path, ret);
 		return -1;
 	}
 
-	if (fp->f_inode->i_size <= 0 || fp->f_inode->i_size > FACTORY_MAX_SIZE) {
-		bes_err(			"bes2600_factory.txt size check failed, read_size: %lld max_size: %d\n",
-			fp->f_inode->i_size, FACTORY_MAX_SIZE);
-		filp_close(fp, NULL);
+	if (fw->size == 0 || fw->size > FACTORY_MAX_SIZE) {
+		bes_err("bes2600_factory.txt size check failed, read_size: %zu max_size: %d\n",
+			fw->size, FACTORY_MAX_SIZE);
+		release_firmware(fw);
 		return -1;
 	}
 
-	ret = kernel_read(fp, buffer, fp->f_inode->i_size, &fp->f_pos);
-
-	filp_close(fp, NULL);
-
-	if (ret != fp->f_inode->i_size) {
-		bes_err("bes2600_factory.txt read fail\n");
-		ret = -1;
-	}
-
+	memcpy(buffer, fw->data, fw->size);
+	ret = (int)fw->size;
+	release_firmware(fw);
 	return ret;
 }