diff --git a/general/overlay/etc/wireless/sdio b/general/overlay/etc/wireless/sdio
index 9ad5d66d..54406c79 100755
--- a/general/overlay/etc/wireless/sdio
+++ b/general/overlay/etc/wireless/sdio
@@ -8,6 +8,14 @@ set_gpio() {
 	sleep 1
 }
 
+
+set_mmc() {
+	mmc=/sys/devices/platform/jzmmc_v1.2.$1/present
+	if [ "$(cat $mmc)" = "N" ]; then
+		echo "INSERT" > $mmc
+	fi
+}
+
 # T31 ATBM603X mmc0
 if [ "$1" = "atbm603x-t31-mmc0" ]; then
 	# PB10 in wifi mmc1 is in the pull-down state by default, it needs to be set to a high-impedance state
@@ -15,11 +23,7 @@ if [ "$1" = "atbm603x-t31-mmc0" ]; then
 	# set wifi mmc1 clk drive capability to 8mA
 	devmem 0x10011134 32 0x20000
 
-	# "insert" the bus mmc0 device
-	if [ "$(cat /sys/devices/platform/jzmmc_v1.2.0/present)" = "N" ]; then
-		echo "INSERT" > /sys/devices/platform/jzmmc_v1.2.0/present
-		sleep 1
-	fi
+	set_mmc 0
 
 	cp /usr/share/atbm603x_conf/atbm_txpwer_dcxo_cfg.txt /tmp
 	cp /usr/share/atbm603x_conf/set_rate_power.txt /tmp
@@ -33,11 +37,7 @@ if [ "$1" = "atbm603x-t31-mmc1" ]; then
 	# not sure what this does, but it's copied from the stock fw
 	devmem 0x10011110 32 0x6e094800
 
-	# "insert" the bus mmc1 device
-	if [ "$(cat /sys/devices/platform/jzmmc_v1.2.1/present)" = "N" ]; then
-		echo "INSERT" > /sys/devices/platform/jzmmc_v1.2.1/present
-		sleep 1
-	fi
+	set_mmc 1
 
 	cp /usr/share/atbm603x_conf/atbm_txpwer_dcxo_cfg.txt /tmp
 	cp /usr/share/atbm603x_conf/set_rate_power.txt /tmp
@@ -46,14 +46,11 @@ if [ "$1" = "atbm603x-t31-mmc1" ]; then
 	exit 0
 fi
 
-# T31 Wyze V3 / AtomCam 2 ATBM6031
+# T31 Wyze V3 / AtomCam 2 ATBM603x
 if [ "$1" = "atbm603x-t31-wyze-v3" ]; then
         set_gpio 57 1
 
-	if [ "$(cat /sys/devices/platform/jzmmc_v1.2.1/present)" = "N" ]; then
-		echo "INSERT" > /sys/devices/platform/jzmmc_v1.2.1/present
-		sleep 1
-	fi
+	set_mmc 1
 
         cp /usr/share/atbm603x_conf/atbm_txpwer_dcxo_cfg.txt /tmp
         cp /usr/share/atbm603x_conf/set_rate_power.txt /tmp
@@ -67,10 +64,7 @@ fi
 if [ "$1" = "rtl8189ftv-t31-wyze-v3" ]; then
         set_gpio 57 1
 
-        if [ "$(cat /sys/devices/platform/jzmmc_v1.2.1/present)" = "N" ]; then
-                echo "INSERT" > /sys/devices/platform/jzmmc_v1.2.1/present
-                sleep 1
-        fi
+	set_mmc 1
 
         modprobe 8189fs rtw_power_mgnt=0 rtw_enusbss=0
         sleep 1
@@ -79,10 +73,7 @@ fi
 
 # T31 Wyze DB3 RTL8189FTV
 if [ "$1" = "rtl8189ftv-t31-wyze-db3" ]; then
-        if [ "$(cat /sys/devices/platform/jzmmc_v1.2.1/present)" = "N" ]; then
-                echo "INSERT" > /sys/devices/platform/jzmmc_v1.2.1/present
-                sleep 1
-        fi
+	set_mmc 1
 
         modprobe 8189fs rtw_power_mgnt=0 rtw_enusbss=0
         sleep 1