diff --git a/app/src/one_conduction/one_conduction_main.c b/app/src/one_conduction/one_conduction_main.c
index 55c4c15..da83255 100644
--- a/app/src/one_conduction/one_conduction_main.c
+++ b/app/src/one_conduction/one_conduction_main.c
@@ -25,22 +25,26 @@ void zdatachannel_data_handler(zdatachannel_evt_t* p_evt) {
 #define SAMPLES   100
 #define AMPLITUDE 50
 static void test_tx_timer_cb(void* p_context) {
-  sample_data_mgr_init();
-  static sample_data_filename_t filename = {0x00, 0x02, 0x03, 0x04, 0x05};
-  static uint8_t wd[256];
-  for (size_t i = 0; i < 256; i++) wd[i] = i;
-  int fd;
-  for (size_t i = 0; i < 20; i++) {
-    filename.year += 1;
-    fd = sample_data_mgr_open(&filename, kwrflag_write_only);
-    for (size_t i = 0; i < 10; i++) {
-      sample_data_mgr_write(fd, wd, 256);
-    }
-    sample_data_mgr_close(fd);
-  }
-  ZLOGI_BLOCK("write end....");
-  sample_data_mgr_dump_fileinfo_list();
-  sample_data_mgr_uninit();
+  // sample_data_mgr_init();
+  // static sample_data_filename_t filename = {0x00, 0x02, 0x03, 0x04, 0x05};
+  // static uint8_t                wd[256];
+  // static uint8_t                rdcache[256];
+  // for (size_t i = 0; i < 256; i++) wd[i] = i;
+
+  // int fd = sample_data_mgr_open(&filename, kwrflag_write_only);
+  // for (size_t i = 0; i < 10; i++) {
+  //   sample_data_mgr_write(fd, wd, 256);
+  // }
+  // sample_data_mgr_close(fd);
+
+  // fd = sample_data_mgr_open(&filename, kwrflag_read_only);
+  // for (size_t i = 0; i < 10; i++) {
+  //   sample_data_mgr_read(fd, rdcache, 256);
+  //   NRF_LOG_HEXDUMP_INFO(rdcache, 256);
+  // }
+
+  // sample_data_mgr_dump_fileinfo_list();
+  // sample_data_mgr_uninit();
 }
 
 extern uint32_t g_nrf_log_tx_pin;
diff --git a/app/src/one_conduction/zeeprom_fs.c b/app/src/one_conduction/zeeprom_fs.c
index 4e21ed3..4219d71 100644
--- a/app/src/one_conduction/zeeprom_fs.c
+++ b/app/src/one_conduction/zeeprom_fs.c
@@ -236,9 +236,9 @@ int zeeprom_fs_read(int fileid, uint8_t* data, int32_t size) {
   ZASSERT(radd % 256 == 0);
   radd += sector_off;
 
-  int32_t readlen = size;
-  zeeprom_read(radd, data, readlen);
-  return readlen;
+  zeeprom_read(radd, data, size);
+  fileHander->file_offset += size;
+  return size;
 }
 
 int zeeprom_fs_delete(int32_t fileuuid) {