diff --git a/SD_ROOT/wz_mini/usr/bin/app.ver b/SD_ROOT/wz_mini/usr/bin/app.ver
index d121f62..caafda1 100644
--- a/SD_ROOT/wz_mini/usr/bin/app.ver
+++ b/SD_ROOT/wz_mini/usr/bin/app.ver
@@ -1 +1 @@
-Sat Jul 23 11:40:03 PM PDT 2022
+Mon Jul 25 07:14:00 AM PDT 2022
diff --git a/file.chk b/file.chk
index dec57af..361dfe8 100644
--- a/file.chk
+++ b/file.chk
@@ -113,7 +113,7 @@ b339aee882a5d1c943ad08e4282ec3fd  SD_ROOT/wz_mini/usr/bin/iCamera-dbg
 20b061689308b2cee7edf3b9b906bca7  SD_ROOT/wz_mini/usr/bin/ucamera
 3777d9e80c8b517c01a124e6360b6525  SD_ROOT/wz_mini/usr/bin/imp_helper.sh
 580b1b6e91e72b4a4fef7b21d8954403  SD_ROOT/wz_mini/usr/bin/getSensorType
-516d785d98365c61d646b1c45b134bb4  SD_ROOT/wz_mini/usr/bin/app.ver
+65e466ffca31c323ec43391db68fe7d2  SD_ROOT/wz_mini/usr/bin/app.ver
 4c780f0455481d106d47d89f0ae04ed5  SD_ROOT/wz_mini/lib/uClibc.tar
 9afeb088e4cbabbe0b04033b560204d0  SD_ROOT/wz_mini/lib/libimp.so
 4100755cb6cc6e3b76da20c7e3690e16  SD_ROOT/wz_mini/lib/libalog.so
@@ -264,7 +264,7 @@ bd383994491e4bdca81788c168feb2eb  SD_ROOT/wz_mini/lib/libasound.so.2
 f6f0d5a9ebd916de6bdb9695067809ae  SD_ROOT/wz_mini/lib/libaudioProcess.so
 ac436b39b69f26fb65e993c2dfefb421  SD_ROOT/wz_mini/wz_mini.conf
 d41d8cd98f00b204e9800998ecf8427e  SD_ROOT/wz_mini/tmp/.gitignore
-30cd28d6e52753c4afe5d6bca209bfc7  v2_install/compile_image.sh
+283fca97d62c1c199eb2b04877998879  v2_install/compile_image.sh
 53db8da5b90bc9b219dbb1d58e934bda  v2_install/fw_tool.sh
 71f103530794f9cb15aa6bb7f1e5b8a7  v2_install/v2_kernel.bin
 f01d641b98388e273c1f0ba682ebc75b  v2_install/.gitignore
diff --git a/v2_install/compile_image.sh b/v2_install/compile_image.sh
index 436e773..abff205 100755
--- a/v2_install/compile_image.sh
+++ b/v2_install/compile_image.sh
@@ -4,10 +4,16 @@ UA_STRING="Mozilla/5.0 (Macintosh; Intel Mac OS X 12_4) AppleWebKit/605.1.15 (KH
 DL_URL=$(wget --header="Accept: text/html" --user-agent="$UA_STRING" -qO- https://support.wyze.com/hc/en-us/articles/360024852172-Release-Notes-Firmware | grep -Eo "(http|https)://[a-zA-Z0-9./?=_-]*" | grep /v2/ |   sort -t . -k2r,5 | grep demo | head -1)
 PAN_DL_URL=$(wget --header="Accept: text/html" --user-agent="$UA_STRING" -qO- https://support.wyze.com/hc/en-us/articles/360024852172-Release-Notes-Firmware | grep -Eo "(http|https)://[a-zA-Z0-9./?=_-]*" | grep /pan/ |   sort -t . -k2r,5 | grep demo | head -1)
 
+tools() {
 echo "checking for tools"
 command -v wget >/dev/null 2>&1 || { echo >&2 "wget is not installed.  Aborting."; exit 1; }
 command -v mkimage >/dev/null 2>&1 || { echo >&2 "mkimage is not installed.  Aborting."; exit 1; }
 command -v unzip >/dev/null 2>&1 || { echo >&2 "unzip is not installed.  Aborting."; exit 1; }
+echo "tools OK"
+}
+
+download(){
+rm -f demo.bin
 
 echo "create temporary work directory"
 mkdir v2_ro
@@ -22,12 +28,23 @@ else
 	if [[ "$1" == "pan" ]]; then
 		echo "build for pan"
 		wget $PAN_DL_URL -O ./v2_ro/demo.zip
-	elif [[ "$1" == "" ]]; then
+	else
 		echo "build for v2"
 		wget $DL_URL -O ./v2_ro/demo.zip
 	fi
+
+	if [[ $(md5sum ./v2_ro/demo.zip) == *"a69b6d5ffdbce89463fa83f7f06ec10b"* ]]; then
+		echo "v2 4.9.8.1002"
+	elif [[ $(md5sum ./v2_ro/demo.zip) == *"91793d32fd797a10df572f4f5d72bc55"* ]]; then
+		echo "pan v1 4.10.8.1002"
+	else
+		echo "md5sum failed check, please manually supply file"
+		rm -rf v2_ro
+		exit 1
+	fi
 fi
 
+
 echo "extracting firmware to temporary work directory"
 unzip v2_ro/demo*.zip -d ./v2_ro/
 
@@ -47,3 +64,16 @@ echo "remove temporary work directory"
 rm -rf v2_ro
 
 echo "demo.bin ready.  Please copy demo.bin to your memory card"
+}
+
+
+read -r -p "wz_mini: this will download the latest firmware version from the vendor and compile a modified demo.bin.  Are you sure? [y/N]" response
+			case "$response" in
+			[yY][eE][sS]|[yY])
+			tools
+			download $1
+			;;
+		        *)
+			echo "User declined, exit"
+	        	;;
+		    esac