diff --git a/src/comps/term.comp b/src/comps/term.comp
index 9eb72080..d8b5e592 100644
--- a/src/comps/term.comp
+++ b/src/comps/term.comp
@@ -63,7 +63,6 @@ MEM(volatile float jog_timeout) = 0.0;
 MEM(volatile float jog_en) = 0.0;
 
 INIT(
-   hal_conf_init();
    if(hal_conf_load()){//flash load error
       hal.hal_state = CONFIG_LOAD_ERROR;
    }
@@ -255,13 +254,25 @@ NRT(
          }else if(ret == -3){
             printf("flash read error\n");
          }else if(ret == -4){
-            printf("hal running error\n");
+            printf("cannot load while hal is running(run 'stop' command)\n");
          }else if(ret == -5){
             printf("CRC error\n");
          }else{
             printf("done\n");
          }
       }
+      else if(!strcmp(s, "initflash")){//TODO: command to format param sectors, init sometimes fails...
+         if(hal.rt_state != RT_STOP || hal.frt_state != FRT_STOP){
+            printf("cannot init flash while hal is running(run 'stop' command)\n");
+         }else{
+            uint16_t ret = hal_conf_init();
+            if(ret == FLASH_COMPLETE){
+               printf("flash init OK. now do load or save\n");
+            }else{
+               printf("init error: %i\n",ret);  
+            }
+         }
+      }
       else if(!strcmp(s, "getconf")){
          hal_term_getconf();
       }
diff --git a/src/hal_conf.c b/src/hal_conf.c
index d8d74c99..2f7d0368 100644
--- a/src/hal_conf.c
+++ b/src/hal_conf.c
@@ -4,17 +4,18 @@
 #include "link.h"
 #include <stdio.h>
 
-void hal_conf_init(){
+uint16_t hal_conf_init(){
    FLASH_Unlock();
-   EE_Init();
+   uint16_t ret = EE_Init();
    FLASH_Lock();
+   return ret;
 }
 
 void hal_conf_save(){
-   // if(ee_error != FLASH_COMPLETE){
-   //    printf("flash error:%i\n",ee_error);
-   //    return;
-   // }
+   if(hal.rt_state != RT_STOP || hal.frt_state != FRT_STOP){
+      printf("cannot save while hal is running(run 'stop' command)\n");
+      return(-1);
+   }
    typedef union{
       float f;
       uint16_t byte[2];
@@ -42,8 +43,9 @@ void hal_conf_save(){
          elo = EE_WriteVariable(address,param.byte[0]);
          ehi = EE_WriteVariable(address+1,param.byte[1]);
          if(elo != FLASH_COMPLETE || ehi != FLASH_COMPLETE){
-            printf("error writing to %i: error%i,%i\n",address,elo,ehi);
-            break;
+            FLASH_Lock();
+            printf("error writing to address %i: error: %i,%i\n",address,elo,ehi);
+            return -1;
          }
          address+=2;
       }
@@ -52,19 +54,19 @@ void hal_conf_save(){
    crc = crc16_finalize(crc);
    elo = EE_WriteVariable(address, crc);
    if(elo != FLASH_COMPLETE){
-      printf("error writing crc to %i: error%i\n",address,elo);
+      printf("error writing crc to address %i: error: %i\n",address,elo);
+      FLASH_Lock();
+      return -1;
    }
    FLASH_Lock();
-   printf("done\n");
+   printf("flash save OK\n");
 }
 
 int hal_conf_load(){
    if(hal.rt_state != RT_STOP || hal.frt_state != FRT_STOP){
       return(-4);
    }
-   // if(ee_error != FLASH_COMPLETE){
-   //    return -1;
-   // }
+
    typedef union{
       float f;
       uint16_t byte[2];
@@ -93,6 +95,7 @@ int hal_conf_load(){
             param.byte[1] = hi;
             hal.hal_pins[i]->value = param.f;
          }else{
+            printf("error reading address %i: %i,%i\n",address,elo,ehi);
             return -3;
          }
          address+=2;
@@ -101,6 +104,7 @@ int hal_conf_load(){
    }
    elo = EE_ReadVariable(address,&lo);
    if(elo != 0){
+      printf("error reading crc from address %i: %i\n",address,elo);
       return -3;
    }
    crc = crc16_finalize(crc);
diff --git a/src/hal_conf.h b/src/hal_conf.h
index 1db20f99..b8a2c350 100644
--- a/src/hal_conf.h
+++ b/src/hal_conf.h
@@ -6,4 +6,4 @@
 
 void hal_conf_save();
 int hal_conf_load();
-void hal_conf_init();
+uint16_t hal_conf_init();