android mtk p修改关机测试，快速进入版本信息后，modem imei barcode 为unknown的问题

static int create_md_verinfo(char *info, int *len) {
    char ccci_path[MAX_MODEM_INDEX][32];
    memset(ccci_path, 0, sizeof(char) * MAX_MODEM_INDEX * 32);
    char temp_ccci_path [MAX_MODEM_INDEX][32];
    memset(temp_ccci_path, 0, sizeof(char) * MAX_MODEM_INDEX * 32);  
    char imei[4][128];
    memset(imei, 0, sizeof(char) * 4 * 128);
    char meid[128];
    memset(meid, 0, sizeof(char) * 128);
    char md_ver[2][128];
    memset(md_ver, 0, sizeof(char) * 2 * 128);
    char barcode[2][128];
    memset(barcode, 0, sizeof(char) * 2 * 128);
    Connection modem[5];
    int md_num = get_md_count();
    int lte_md_num = get_lte_md_count();
    int sim_num = ftm_get_sim_num();
	/*SUN:jicong.wang add start {@*/
    int num=0;
connet:
	/*SUN:jicong.wang add end @}*/
    int i = 0, j = 0;
    for(i = 0; i < MAX_MODEM_INDEX; i++)
    {
        if(1 == get_ccci_path(i,temp_ccci_path[i]))
        {
            strncpy(ccci_path[j],temp_ccci_path[i], strlen(temp_ccci_path[i]));
            j++ ;
        }
    }
    for (int i = 0; i < md_num; i++)
    {
        if (strlen(ccci_path[i]) > 0) {
            if(0 == modem[i].Conn_Init(ccci_path[i],i,g_SIGNAL_Callback[i])) {
                LOGD(TAG "modem %d open fail",(i));
            } else {
                LOGD(TAG "modem %d open OK",(i));
            }
        }
    }

    if (1 == isC2kSupport())
    {
        if(g_Flag_VPUP != 1)
        {
            if(ER_OK!= modem[md_num-1].QueryModemStatus())
            {
                g_Flag_VPUP = 0;
                wait_URC(ID_VPUP);
            }
            else
            {
                g_Flag_VPUP = 1 ;
            }
        }
        LOGD("modem c2k open successfully");
        getMEID(modem[md_num-1], meid);
    }
    for (int i = 0; i < lte_md_num; i++)
    {
        if(g_Flag_EIND != 1)
        {
            if(ER_OK!= modem[i].QueryModemStatus())
            {
                g_Flag_EIND = 0 ;
                wait_URC(ID_EIND);
            }
            else
            {
                g_Flag_EIND = 1 ;
            }
        }
    }
    getIMEI(1, modem[0], imei[0]);
    getModemVersion(modem[0], md_ver[0]);
    getBarcode(modem[0], barcode[0]);
	/*SUN:jicong.wang add start {@*/
    if(strlen(imei[0])==0 || strlen(md_ver[0])==0 ||  strlen(barcode[0])==0 ){
        if(num<3){
            num++;
            LOGD(TAG "goto connect");
            goto connet;  
        } 
    }  
    /*SUN:jicong.wang add end @}*/
    ....