diff --git a/mbtk/mbtk_utils/device_info.c b/mbtk/mbtk_utils/device_info.c
index 976f289..63efced 100755
--- a/mbtk/mbtk_utils/device_info.c
+++ b/mbtk/mbtk_utils/device_info.c
@@ -11,6 +11,7 @@
 /*
 * Exec shell command.
 */
+/*
 static bool shell_cmd_exec(const char *cmd, char *buf, int buf_size){
     FILE *fcmd;
     bool result = FALSE;
@@ -44,7 +45,7 @@
     return result;
 }
 
-
+*/
 static char* band_2_str(mbtk_modem_band_area_enum band_area)
 {
     switch(band_area)
@@ -162,7 +163,7 @@
 static int band_set_by_at(mbtk_device_info_modem_t *band)
 {
     char cmd[100] = {0};
-    char rsp[100] = {0};
+//    char rsp[100] = {0};
 
     // Only support 4G/5G
     if(band->modem.v2.net_support & MBTK_NET_SUPPORT_5G) {
@@ -185,7 +186,7 @@
             sprintf(cmd, "serial_atcmd AT*BAND=%d,%d,%d,%d,%d", band->modem.v2.net_pref, band->modem.v2.band_gsm, band->modem.v2.band_wcdma, band->modem.v2.band_tdlte, band->modem.v2.band_fddlte);
         }
     }
-
+/*
     if(shell_cmd_exec(cmd, rsp, sizeof(rsp))) {
         if(strstr(rsp, "\r\nOK\r\n")) {
             return 0;
@@ -195,6 +196,8 @@
     } else {
         return -1;
     }
+    */
+    return 0;
 }
 
 /*