diff --git a/bin/device-install.bat b/bin/device-install.bat
index 419e8d6bd..15c2db352 100755
--- a/bin/device-install.bat
+++ b/bin/device-install.bat
@@ -26,7 +26,7 @@ IF "__%FILENAME%__" == "____" (
     echo "Missing FILENAME"
 	goto HELP
 )
-IF EXIST %FILENAME% (
+IF EXIST %FILENAME% IF x%FILENAME:update=%==x%FILENAME% (
     echo Trying to flash update %FILENAME%, but first erasing and writing system information"
 	%PYTHON% -m esptool --baud 115200 erase_flash
 	%PYTHON% -m esptool --baud 115200 write_flash 0x00 %FILENAME%
@@ -37,6 +37,9 @@ IF EXIST %FILENAME% (
 ) else (
     echo "Invalid file: %FILENAME%"
 	goto HELP
+) else (
+    echo "Invalid file: %FILENAME%"
+	goto HELP
 )
 
 :EOF
diff --git a/bin/device-install.sh b/bin/device-install.sh
index a55e553c7..bc14d440b 100755
--- a/bin/device-install.sh
+++ b/bin/device-install.sh
@@ -14,6 +14,7 @@ Flash image file to device, but first erasing and writing system information"
     -p ESPTOOL_PORT  Set the environment variable for ESPTOOL_PORT.  If not set, ESPTOOL iterates all ports (Dangerous).
     -P PYTHON        Specify alternate python interpreter to use to invoke esptool. (Default: "$PYTHON")
     -f FILENAME      The .bin file to flash.  Custom to your device type and region.
+
 EOF
 }
 
@@ -44,7 +45,7 @@ shift "$((OPTIND-1))"
     shift
 }
 
-if [ -f "${FILENAME}" ]; then
+if [ -f "${FILENAME}" ] && [ "${FILENAME}" != *"update"* ]; then
 	echo "Trying to flash ${FILENAME}, but first erasing and writing system information"
 	"$PYTHON" -m esptool  erase_flash
 	"$PYTHON" -m esptool  write_flash 0x00 ${FILENAME}
@@ -52,8 +53,8 @@ if [ -f "${FILENAME}" ]; then
 	"$PYTHON" -m esptool  write_flash 0x300000 littlefs-*.bin
 
 else
-	echo "Invalid file: ${FILENAME}"
 	show_help
+	echo "Invalid file: ${FILENAME}"
 fi
 
 exit 0
diff --git a/bin/device-update.bat b/bin/device-update.bat
index 103fbad6e..2ac649be4 100755
--- a/bin/device-update.bat
+++ b/bin/device-update.bat
@@ -26,12 +26,15 @@ IF "__%FILENAME%__" == "____" (
     echo "Missing FILENAME"
 	goto HELP
 )
-IF EXIST %FILENAME% (
+IF EXIST %FILENAME% IF NOT x%FILENAME:update=%==x%FILENAME% (
     echo Trying to flash update %FILENAME%
     %PYTHON% -m esptool --baud 115200 write_flash 0x10000 %FILENAME%
 ) else (
     echo "Invalid file: %FILENAME%"
 	goto HELP
+) else (
+    echo "Invalid file: %FILENAME%"
+	goto HELP
 )
 
 :EOF
diff --git a/bin/device-update.sh b/bin/device-update.sh
index bd06fb25a..0959f0e3c 100755
--- a/bin/device-update.sh
+++ b/bin/device-update.sh
@@ -12,6 +12,7 @@ Flash image file to device, leave existing system intact."
     -p ESPTOOL_PORT  Set the environment variable for ESPTOOL_PORT.  If not set, ESPTOOL iterates all ports (Dangerrous).
     -P PYTHON        Specify alternate python interpreter to use to invoke esptool. (Default: "$PYTHON")
     -f FILENAME      The *update.bin file to flash.  Custom to your device type.
+    
 EOF
 }
 
@@ -42,12 +43,12 @@ shift "$((OPTIND-1))"
     shift
 }
 
-if [ -f "${FILENAME}" ]; then
-	echo "Trying to flash update ${FILENAME}."
+if [ -f "${FILENAME}" ] && [ $FILENAME == *"update"* ]; then
+	printf "Trying to flash update ${FILENAME}"
 	$PYTHON -m esptool --baud 115200 write_flash 0x10000 ${FILENAME}
 else
-	echo "Invalid file: ${FILENAME}"
 	show_help
+	echo "Invalid file: ${FILENAME}"
 fi
 
 exit 0