diff --git a/Core/Kline_Libs/kl_app.c b/Core/Kline_Libs/kl_app.c
index a18e8a5..ebcc836 100644
--- a/Core/Kline_Libs/kl_app.c
+++ b/Core/Kline_Libs/kl_app.c
@@ -61,6 +61,8 @@ static const KL_FaultCode s_default_dtcs[] = {
 static const uint8_t kPwdBody_DFI[]       = { 0x00, 0x03, 0xFF, 0xFF };
 static const uint8_t kLoginBody_DFI[]     = { 0x00, 0x00, 0x00, 0xBF, 0x30, 0x35, 0x30, 0x30, 0x30, 0x31, 0x1C, 0x09, 0x04 };
 static const uint8_t kPwdBody_DFI_WRITE[] = { 0x00, 0x03, 0x2F, 0xFF, 'K','H','T','C','A','8','G','0','E' };
+static const uint8_t kPwdBody_DFI_WRITE_815[] = { 0x00, 0x03, 0x2F, 0xFF, '0','5','0','0','0','1',0x1C,0x09,0x04 };
+
 static const uint8_t kPwdBody_CUST[]      = { 0x00, 0x00, 0x82, 0x33 };
 static const uint8_t kLoginBody_CUST[]    = { 0x00, 0x00, 0x9F, 0xFF, 0x30, 0x35, 0x30, 0x30, 0x30, 0x31, 0x1C, 0x09, 0x04 };
 static const uint8_t kPwdBody_OEM_1[]     = { 0x00, 0x02, 0x2E, 0x10 };
@@ -275,6 +277,10 @@ static void handle_login_eeprom(const KL_Packet *cmd)
         app.eeprom_unlocked_dfi_write = 1;
         login_body = kLoginBody_DFI;
         login_len  = sizeof(kLoginBody_DFI);
+    }else if (body_len == sizeof(kPwdBody_DFI_WRITE_815) && memcmp(body, kPwdBody_DFI_WRITE_815, sizeof(kPwdBody_DFI_WRITE_815)) == 0) {
+		app.eeprom_unlocked_dfi_write = 1;
+		login_body = kLoginBody_DFI;
+		login_len  = sizeof(kLoginBody_DFI);
     } else {
         /* Wrong password -- clear all locks */
         app.eeprom_unlocked_dfi       = 0;
@@ -321,8 +327,13 @@ static void handle_write_eeprom(const KL_Packet *cmd)
     s_dfi_code = (int8_t)value;
     memWrite = 1;
 
-    uint8_t payload[1] = { (uint8_t)KL_CMD_WriteEepromResponse };
-    start_response(payload, 1);
+    uint8_t payload[5];
+    payload[0] = (uint8_t)KL_CMD_WriteEepromResponse;
+    payload[1] = (uint8_t)len_req;
+    payload[2] = (uint8_t)((addr >> 8) & 0xFF);
+    payload[3] = (uint8_t)(addr & 0xFF);
+    payload[4] = 0xFF;
+    start_response(payload, 5);
 }
 
 uint8_t SYNC_PULSE_OUT;