diff --git a/package/mtk/applications/mtwifi-cfg/files/l1util/l1dat_parser.lua b/package/mtk/applications/mtwifi-cfg/files/l1util/l1dat_parser.lua
index 6101c72a56..99e9cbc52c 100644
--- a/package/mtk/applications/mtwifi-cfg/files/l1util/l1dat_parser.lua
+++ b/package/mtk/applications/mtwifi-cfg/files/l1util/l1dat_parser.lua
@@ -148,7 +148,7 @@ function l1dat_parser.load_l1_profile(path)
                            end
                      end
                  })
-    local nixio = require("nixio")
+    --local nixio = require("nixio")
     local chipset_num = {}
     local dir = io.popen("ls /etc/wireless/")
     if not dir then return end
@@ -167,9 +167,9 @@ function l1dat_parser.load_l1_profile(path)
                 k1, k2 = string.match(k, "INDEX(%d+)_(.+)")
                 if k1 then
                     k1 = tonumber(k1) + 1
-                    if devs[k1][k2] then
-                        nixio.syslog("warning", "skip repeated key"..line)
-                    end
+                    --if devs[k1][k2] then
+                    --    nixio.syslog("warning", "skip repeated key"..line)
+                    --end
                     devs[k1][k2] = v or ""
                 else
                     k1 = string.match(k, "INDEX(%d+)")
diff --git a/package/mtk/applications/mtwifi-cfg/files/l1util/l1util b/package/mtk/applications/mtwifi-cfg/files/l1util/l1util
index 53ba2cc59a..41020c7a5f 100755
--- a/package/mtk/applications/mtwifi-cfg/files/l1util/l1util
+++ b/package/mtk/applications/mtwifi-cfg/files/l1util/l1util
@@ -26,14 +26,27 @@ function show_usage()
 end
 
 function show_devs()
+    local devs = {}
     local ret = ""
-    for k, _ in pairs(l1dat.devname_ridx) do
-        if #ret > 0 then
-            ret = ret .. " " .. k
-        else
-            ret = k
+
+    for k, v in pairs(l1dat.devname_ridx) do
+        -- skip MT7986-2.4G for ax7800 project
+        if not(string.find(v.profile_path, "ax7800") and 
+        v.INDEX == "MT7986" and v.subidx == 1) then
+            table.insert(devs, k)
         end
     end
+
+    table.sort(devs)
+
+    for _,v in ipairs(devs) do
+        if #ret > 0 then
+            ret = ret .. " " .. v
+        else
+            ret = v
+        end
+    end
+
     print(ret)
 end
 
diff --git a/package/mtk/applications/mtwifi-cfg/files/mtwifi-cfg/mtwifi_cfg b/package/mtk/applications/mtwifi-cfg/files/mtwifi-cfg/mtwifi_cfg
index 1695c3ebc7..190124c45a 100755
--- a/package/mtk/applications/mtwifi-cfg/files/mtwifi-cfg/mtwifi_cfg
+++ b/package/mtk/applications/mtwifi-cfg/files/mtwifi-cfg/mtwifi_cfg
@@ -92,12 +92,14 @@ end
 function ifup(ifname)
     if ifname and #ifname > 0 then
         os.execute("ifconfig "..ifname.." up")
+        nixio.syslog("info", "mtwifi-cfg: ifconfig up "..ifname)
     end
 end
 
 function ifdown(ifname)
     if ifname and #ifname > 0 then
         os.execute("ifconfig "..ifname.." down")
+        nixio.syslog("info", "mtwifi-cfg: ifconfig down "..ifname)
     end
 end
 
@@ -184,11 +186,12 @@ end
 function mtwifi_up(devname, cfg, restore_vifs, is_dbdc)
     nixio.syslog("info", "mtwifi-cfg: start "..devname)
     local dev = l1dat.devname_ridx[devname]
-    local dbdc_main_ifname = defs.dbdc_init_ifname
-
     if not dev then return end
 
     if is_dbdc then
+        local dbdc_main_dev = dev.INDEX .. "_1_1"
+        local dbdc_main_ifname = l1dat.devname_ridx[dbdc_main_dev].main_ifname
+
         if not is_dbdc_inited(dbdc_main_ifname) then
             nixio.syslog("info", "mtwifi-cfg: dbdc card init...")
             ifup(dbdc_main_ifname)
@@ -318,7 +321,9 @@ function set_chip_cfg(cfg, dats)
 
     -- setup other dev cfg
     for k,v in pairs(l1dat.devname_ridx) do
-        if k ~= cfg.device then        
+        if k ~= cfg.device and 
+        v.INDEX == l1dat.devname_ridx[cfg.device].INDEX and 
+        v.mainidx == l1dat.devname_ridx[cfg.device].mainidx then        
             dev_dats = load_profile(v.profile_path)
             if dev_dats then
                 for _,j in pairs(defs.chip_cfgs) do
@@ -641,18 +646,22 @@ function mtwifi_cfg_setup(argv)
             end
 
             if restart_other_dbdc_dev then
-                for k, _ in pairs(l1dat.devname_ridx) do
-                    local ret = mtwifi_down(k, cfg)
-                    for _, v in ipairs(ret) do
-                        table.insert(restore_vifs, v)
+                for k, j in pairs(l1dat.devname_ridx) do
+                    if j.INDEX == dev.INDEX and j.mainidx == dev.mainidx then
+                        local ret = mtwifi_down(k, cfg)
+                        for _, v in ipairs(ret) do
+                            table.insert(restore_vifs, v)
+                        end
                     end
                 end
                 if #restore_vifs > 0 then
                     nixio.syslog("info", "mtwifi-cfg: dbdc restore_vifs: "..inspect.inspect(restore_vifs))
                 end
 
-                for k, _ in pairs(l1dat.devname_ridx) do
-                    mtwifi_up(k, cfg, restore_vifs, true)
+                for k, j in pairs(l1dat.devname_ridx) do
+                    if j.INDEX == dev.INDEX and j.mainidx == dev.mainidx then
+                        mtwifi_up(k, cfg, restore_vifs, true)
+                    end
                 end
             else
                 mtwifi_down(devname)
diff --git a/package/mtk/applications/mtwifi-cfg/files/mtwifi-cfg/mtwifi_defs.lua b/package/mtk/applications/mtwifi-cfg/files/mtwifi-cfg/mtwifi_defs.lua
index 0546be43f4..198d992573 100644
--- a/package/mtk/applications/mtwifi-cfg/files/mtwifi-cfg/mtwifi_defs.lua
+++ b/package/mtk/applications/mtwifi-cfg/files/mtwifi-cfg/mtwifi_defs.lua
@@ -16,7 +16,6 @@
 
 local mtwifi_defs = {}
 
-mtwifi_defs.dbdc_init_ifname = "ra0"
 mtwifi_defs.max_mbssid = 16
 mtwifi_defs.max_acl_entry = 129