diff --git a/luci/luci-app-qmodem/root/usr/share/qmodem/generic.sh b/luci/luci-app-qmodem/root/usr/share/qmodem/generic.sh
index 154985d..887b36a 100755
--- a/luci/luci-app-qmodem/root/usr/share/qmodem/generic.sh
+++ b/luci/luci-app-qmodem/root/usr/share/qmodem/generic.sh
@@ -76,7 +76,7 @@ add_speed_entry()
     if [ -z "$rate" ]; then
         return
     fi
-    rate=`convert_rate $rate`
+    rate=`rate_convert $rate`
     case $type in
         "rx")
             add_plain_info_entry "Rx Rate" "$rate" "Transmit Rate"
diff --git a/luci/luci-app-qmodem/root/usr/share/qmodem/modem_ctrl.sh b/luci/luci-app-qmodem/root/usr/share/qmodem/modem_ctrl.sh
index 7fa67de..5e3f205 100755
--- a/luci/luci-app-qmodem/root/usr/share/qmodem/modem_ctrl.sh
+++ b/luci/luci-app-qmodem/root/usr/share/qmodem/modem_ctrl.sh
@@ -3,7 +3,7 @@ source /usr/share/libubox/jshn.sh
 method=$1
 config_section=$2
 at_port=$(uci get qmodem.$config_section.at_port)
-sms_at_port=$(uci get qmodem.$config_section.sms_at_port)
+uci -q get qmodem.$config_section.sms_at_port >/dev/null && sms_at_port=$(uci get qmodem.$config_section.sms_at_port)
 vendor=$(uci get qmodem.$config_section.manufacturer)
 platform=$(uci get qmodem.$config_section.platform)
 define_connect=$(uci get qmodem.$config_section.define_connect)
diff --git a/luci/luci-app-qmodem/root/usr/share/qmodem/modem_dial.sh b/luci/luci-app-qmodem/root/usr/share/qmodem/modem_dial.sh
index 7e00de6..7f52306 100755
--- a/luci/luci-app-qmodem/root/usr/share/qmodem/modem_dial.sh
+++ b/luci/luci-app-qmodem/root/usr/share/qmodem/modem_dial.sh
@@ -782,15 +782,12 @@ at_dial()
     esac
     m_debug "dialing vendor:$manufacturer;platform:$platform; $cgdcont_command ; $at_command"
     at "${at_port}" "${cgdcont_command}"
-    [ $mtk -eq 1 ] && sleep 1
     at "$at_port" "$at_command"
-    [ $mtk -eq 1 ] && sleep 1
     if [ "$driver" = "mtk_pcie" ];then
+        at "$at_port" "AT+CGACT=0,3"
         mbim_port=$(echo "$at_port" | sed 's/at/mbim/g')
-        umbim -d $mbim_port disconnect > /dev/null 2>&1
-        sleep 1
-        umbim -d $mbim_port connect > /dev/null 2>&1
-        sleep 1
+        umbim -d $mbim_port disconnect
+        umbim -d $mbim_port connect 0
     fi
 }