diff --git a/a8000_protocol b/a8000_protocol
index 5ed4730..17dfc0a 160000
--- a/a8000_protocol
+++ b/a8000_protocol
@@ -1 +1 @@
-Subproject commit 5ed47307b153a256e90fc5031b58ff65102a7f03
+Subproject commit 17dfc0ae187c70241017a7e7d64f19c78859b712
diff --git a/sdk b/sdk
index 39643f7..986dbc2 160000
--- a/sdk
+++ b/sdk
@@ -1 +1 @@
-Subproject commit 39643f7b7276936e78af888fc2c2923009a3183a
+Subproject commit 986dbc2bbbdc5754b0338ecd0a4dbfa349b2cad6
diff --git a/usrc/subboards/subboard100_idcard_reader/eeprom_service.cpp b/usrc/subboards/subboard100_idcard_reader/eeprom_service.cpp
index 059d5d1..01ce9be 100644
--- a/usrc/subboards/subboard100_idcard_reader/eeprom_service.cpp
+++ b/usrc/subboards/subboard100_idcard_reader/eeprom_service.cpp
@@ -120,11 +120,16 @@ void EEPROMService::detect_online() {
     if (i2c_ping_state[0x50] && i2c_ping_state[0x51] && i2c_ping_state[0x52]) {
       m_nowonline = &m_subdevice_p24c16;
       change_is_online_flag(true);
+      m_writeunlock = false;
       ZLOGI(TAG, "detect eerpom p24c16");
     } else if (!i2c_ping_state[0x50] && i2c_ping_state[0x53] && i2c_ping_state[0x57]) {
       m_nowonline = &m_subdevice_m24lrxxe;
       change_is_online_flag(true);
-      ZLOGI(TAG, "detect eerpom m24lrxxe");
+      m_writeunlock = false;
+      ZLOGI(TAG, "detect eerpom M24LR16E");  //
+      // uint32_t rdbak = 0;
+      // m_subdevice_m24lrxxe.readCfgReg(2332, &rdbak);
+      // ZLOGI(TAG, "m24lrxxe cfg reg: %08x", rdbak);
     }
 
   } else {
@@ -150,7 +155,12 @@ int32_t EEPROMService::a8000_idcard_reader_read_raw(int32_t index, uint8_t* data
 }
 
 int32_t EEPROMService::a8000_idcard_write_raw(int32_t add, uint8_t* data, int32_t len) {
+  zlock_guard guard(m_mutex);
+  if (!m_nowonline) return err::kdevice_offline;
+  if (!m_writeunlock) return err::killegal_operation;
+
   ZLOGI(TAG, "write: 0x%08x, %d", add, len);
+  m_nowonline->write(add, (uint8_t*)&data, len);
   return 0;
 }
 
@@ -161,6 +171,7 @@ int32_t EEPROMService::a8000_idcard_erase() {
 
 int32_t EEPROMService::a8000_idcard_earse_unlock() {
   ZLOGI(TAG, "a8000_idcard_earse_unlock");
+  m_writeunlock = true;
   return 0;
 }
 
@@ -200,7 +211,7 @@ void EEPROMService::write_test_data_rom(ZI_EEPROM* rom) {
   uint32_t readdata = 0;
   for (uint16_t i = 0; i < 2 * 1024;) {
     int32_t wlen = 4;
-    rom->write(i, (uint8_t*)&data, &wlen);
+    rom->write(i, (uint8_t*)&data, wlen);
     rom->read(i, (uint8_t*)&readdata, &wlen);
 
     ZLOGI(TAG, "off:%x w:%d,r:%d", i, data, readdata);
diff --git a/usrc/subboards/subboard100_idcard_reader/eeprom_service.hpp b/usrc/subboards/subboard100_idcard_reader/eeprom_service.hpp
index fa9d009..fe4b745 100644
--- a/usrc/subboards/subboard100_idcard_reader/eeprom_service.hpp
+++ b/usrc/subboards/subboard100_idcard_reader/eeprom_service.hpp
@@ -39,6 +39,7 @@ class EEPROMService : public ZIModule, public ZIA8000IDCardReaderModule {
    *******************************************************************************/
   P24C16              m_subdevice_p24c16;
   M24LRXXE_I2C_EEPROM m_subdevice_m24lrxxe;
+  bool                m_writeunlock = false;
 
  public:
   EEPROMService(){};