diff --git a/bin/device-install.sh b/bin/device-install.sh
index 76765bb5f..2250db4fc 100755
--- a/bin/device-install.sh
+++ b/bin/device-install.sh
@@ -33,47 +33,47 @@ BIGDB_16MB=(
 	"ESP32-S3-Pico"
 	"m5stack-cores3"
 	"station-g2"
-	"t-eth-elite"
-	"t-watch-s3"
+    "t-eth-elite"
+    "t-watch-s3"
 )
 S3_VARIANTS=(
-	"s3"
-	"-v3"
-	"t-deck"
-	"wireless-paper"
-	"wireless-tracker"
-	"station-g2"
-	"unphone"
-	"t-eth-elite"
- 	"mesh-tab"
-	"dreamcatcher"
-	"ESP32-S3-Pico"
-	"seeed-sensecap-indicator"
-	"heltec_capsule_sensor_v3"
-	"vision-master"
-	"icarus"
-	"tracksenger"
-	"elecrow-adv"
+    "s3"
+    "-v3"
+    "t-deck"
+    "wireless-paper"
+    "wireless-tracker"
+    "station-g2"
+    "unphone"
+    "t-eth-elite"
+    "mesh-tab"
+    "dreamcatcher"
+    "ESP32-S3-Pico"
+    "seeed-sensecap-indicator"
+    "heltec_capsule_sensor_v3"
+    "vision-master"
+    "icarus"
+    "tracksenger"
+    "elecrow-adv"
 )
 
 # Determine the correct esptool command to use
 if "$PYTHON" -m esptool version >/dev/null 2>&1; then
-	ESPTOOL_CMD="$PYTHON -m esptool"
+    ESPTOOL_CMD="$PYTHON -m esptool"
 elif command -v esptool >/dev/null 2>&1; then
-	ESPTOOL_CMD="esptool"
+    ESPTOOL_CMD="esptool"
 elif command -v esptool.py >/dev/null 2>&1; then
-	ESPTOOL_CMD="esptool.py"
+    ESPTOOL_CMD="esptool.py"
 else
-	echo "Error: esptool not found"
-	exit 1
+    echo "Error: esptool not found"
+    exit 1
 fi
 
 set -e
 
 # Usage info
 show_help() {
-	cat <<EOF
-Usage: $(basename $0) [-h] [-p ESPTOOL_PORT] [-P PYTHON] [-f FILENAME] [--web] [--1200bps-reset]
+    cat <<EOF
+Usage: $(basename "$0") [-h] [-p ESPTOOL_PORT] [-P PYTHON] [-f FILENAME] [--web] [--1200bps-reset]
 Flash image file to device, but first erasing and writing system information.
 
     -h               Display this help and exit.
@@ -87,39 +87,39 @@ EOF
 }
 # Parse arguments using a single while loop
 while [ $# -gt 0 ]; do
-	case "$1" in
-	-h | --help)
-		show_help
-		exit 0
-		;;
-	-p)
-		ESPTOOL_CMD="$ESPTOOL_CMD --port $2"
-		shift
-		;;
-	-P)
-		PYTHON="$2"
-		shift
-		;;
-	-f)
-		FILENAME="$2"
-		shift
-		;;
-	--web)
-		WEB_APP=true
-		;;
-	--1200bps-reset)
-		BPS_RESET=true
-		;;
-	--) # Stop parsing options
-		shift
-		break
-		;;
-	*)
-		echo "Unknown argument: $1" >&2
-		exit 1
-		;;
-	esac
-	shift # Move to the next argument
+    case "$1" in
+    -h | --help)
+        show_help
+        exit 0
+        ;;
+    -p)
+        ESPTOOL_CMD="$ESPTOOL_CMD --port $2"
+        shift
+        ;;
+    -P)
+        PYTHON="$2"
+        shift
+        ;;
+    -f)
+        FILENAME="$2"
+        shift
+        ;;
+    --web)
+        WEB_APP=true
+        ;;
+    --1200bps-reset)
+		    BPS_RESET=true
+		    ;;
+    --) # Stop parsing options
+        shift
+        break
+        ;;
+    *)
+        echo "Unknown argument: $1" >&2
+        exit 1
+        ;;
+    esac
+    shift # Move to the next argument
 done
 
 if [[ $BPS_RESET == true ]]; then
@@ -127,100 +127,100 @@ if [[ $BPS_RESET == true ]]; then
 	exit 0
 fi
 
-[ -z "$FILENAME" -a -n "$1" ] && {
-	FILENAME=$1
-	shift
+[ -z "$FILENAME" ] && [ -n "$1" ] && {
+    FILENAME="$1"
+    shift
 }
 
-if [[ $FILENAME != firmware-* ]]; then
+if [[ "$FILENAME" != firmware-* ]]; then
   echo "Filename must be a firmware-* file."
   exit 1
 fi
 
 # Check if FILENAME contains "-tft-" and prevent web/mui comingling.
-if [[ ${FILENAME//-tft-/} != "$FILENAME" ]]; then
-	TFT_BUILD=true
-	if [[ $WEB_APP == true ]] && [[ $TFT_BUILD == true ]]; then
-		echo "Cannot enable WebUI (--web) and MUI."
-		exit 1
-	fi
+if [[ "${FILENAME//-tft-/}" != "$FILENAME" ]]; then
+    TFT_BUILD=true
+    if [[ $WEB_APP == true ]] && [[ $TFT_BUILD == true ]]; then
+        echo "Cannot enable WebUI (--web) and MUI."
+        exit 1
+    fi
 fi
 
 # Extract BASENAME from %FILENAME% for later use.
 BASENAME="${FILENAME/firmware-/}"
 
 if [ -f "${FILENAME}" ] && [ -n "${FILENAME##*"update"*}" ]; then
-	# Default littlefs* offset (--web).
-	OFFSET=0x300000
+    # Default littlefs* offset (--web).
+    OFFSET=0x300000
 
-	# Default OTA Offset
-	OTA_OFFSET=0x260000
+    # Default OTA Offset
+    OTA_OFFSET=0x260000
 
-	# littlefs* offset for BigDB 8mb and OTA OFFSET.
-	for variant in "${BIGDB_8MB[@]}"; do
-		if [ -z "${FILENAME##*"$variant"*}" ]; then
-			OFFSET=0x670000
-			OTA_OFFSET=0x340000
-		fi
-	done
+    # littlefs* offset for BigDB 8mb and OTA OFFSET.
+    for variant in "${BIGDB_8MB[@]}"; do
+        if [ -z "${FILENAME##*"$variant"*}" ]; then
+            OFFSET=0x670000
+            OTA_OFFSET=0x340000
+        fi
+    done
 
-	# littlefs* offset for BigDB 16mb and OTA OFFSET.
-	for variant in "${BIGDB_16MB[@]}"; do
-		if [ -z "${FILENAME##*"$variant"*}" ]; then
-			OFFSET=0xc90000
-			OTA_OFFSET=0x650000
-		fi
-	done
+    # littlefs* offset for BigDB 16mb and OTA OFFSET.
+    for variant in "${BIGDB_16MB[@]}"; do
+        if [ -z "${FILENAME##*"$variant"*}" ]; then
+            OFFSET=0xc90000
+            OTA_OFFSET=0x650000
+        fi
+    done
 
-	# Account for S3 board's different OTA partition
-	# FIXME: Use PlatformIO info to determine MCU type, this is unmaintainable
-	for variant in "${S3_VARIANTS[@]}"; do
-		if [ -z "${FILENAME##*"$variant"*}" ]; then
-			MCU="esp32s3"
-		fi
-	done
+    # Account for S3 board's different OTA partition
+    # FIXME: Use PlatformIO info to determine MCU type, this is unmaintainable
+    for variant in "${S3_VARIANTS[@]}"; do
+        if [ -z "${FILENAME##*"$variant"*}" ]; then
+            MCU="esp32s3"
+        fi
+    done
 
-	if [ "$MCU" != "esp32s3" ]; then
-		if [ -n "${FILENAME##*"esp32c3"*}" ]; then
-			OTAFILE=bleota.bin
-		else
-			OTAFILE=bleota-c3.bin
-		fi
-	else
-		OTAFILE=bleota-s3.bin
-	fi
+    if [ "$MCU" != "esp32s3" ]; then
+        if [ -n "${FILENAME##*"esp32c3"*}" ]; then
+            OTAFILE=bleota.bin
+        else
+            OTAFILE=bleota-c3.bin
+        fi
+    else
+        OTAFILE=bleota-s3.bin
+    fi
 
-	# Check if WEB_APP (--web) is enabled and add "littlefswebui-" to BASENAME else "littlefs-".
-	if [ "$WEB_APP" = true ]; then
-		SPIFFSFILE=littlefswebui-${BASENAME}
-	else
-		SPIFFSFILE=littlefs-${BASENAME}
-	fi
+    # Check if WEB_APP (--web) is enabled and add "littlefswebui-" to BASENAME else "littlefs-".
+    if [ "$WEB_APP" = true ]; then
+        SPIFFSFILE=littlefswebui-${BASENAME}
+    else
+        SPIFFSFILE=littlefs-${BASENAME}
+    fi
 
-	if [[ ! -f $FILENAME ]]; then
-		echo "Error: file ${FILENAME} wasn't found. Terminating."
-		exit 1
-	fi
-	if [[ ! -f $OTAFILE ]]; then
-		echo "Error: file ${OTAFILE} wasn't found. Terminating."
-		exit 1
-	fi
-	if [[ ! -f $SPIFFSFILE ]]; then
-		echo "Error: file ${SPIFFSFILE} wasn't found. Terminating."
-		exit 1
-	fi
+    if [[ ! -f "$FILENAME" ]]; then
+        echo "Error: file ${FILENAME} wasn't found. Terminating."
+        exit 1
+    fi
+    if [[ ! -f "$OTAFILE" ]]; then
+        echo "Error: file ${OTAFILE} wasn't found. Terminating."
+        exit 1
+    fi
+    if [[ ! -f "$SPIFFSFILE" ]]; then
+        echo "Error: file ${SPIFFSFILE} wasn't found. Terminating."
+        exit 1
+    fi
 
-	echo "Trying to flash ${FILENAME}, but first erasing and writing system information"
-	$ESPTOOL_CMD erase_flash
-	$ESPTOOL_CMD write_flash 0x00 "${FILENAME}"
-	echo "Trying to flash ${OTAFILE} at offset ${OTA_OFFSET}"
-	$ESPTOOL_CMD write_flash $OTA_OFFSET "${OTAFILE}"
-	echo "Trying to flash ${SPIFFSFILE}, at offset ${OFFSET}"
-	$ESPTOOL_CMD write_flash $OFFSET "${SPIFFSFILE}"
+    echo "Trying to flash ${FILENAME}, but first erasing and writing system information"
+    $ESPTOOL_CMD erase_flash
+    $ESPTOOL_CMD write_flash 0x00 "${FILENAME}"
+    echo "Trying to flash ${OTAFILE} at offset ${OTA_OFFSET}"
+    $ESPTOOL_CMD write_flash $OTA_OFFSET "${OTAFILE}"
+    echo "Trying to flash ${SPIFFSFILE}, at offset ${OFFSET}"
+    $ESPTOOL_CMD write_flash $OFFSET "${SPIFFSFILE}"
 
 else
-	show_help
-	echo "Invalid file: ${FILENAME}"
+    show_help
+    echo "Invalid file: ${FILENAME}"
 fi
 
 exit 0
diff --git a/bin/device-update.sh b/bin/device-update.sh
index c32b953e6..6adfe4e0e 100755
--- a/bin/device-update.sh
+++ b/bin/device-update.sh
@@ -18,8 +18,8 @@ fi
 # Usage info
 show_help() {
 cat << EOF
-Usage: $(basename $0) [-h] [-p ESPTOOL_PORT] [-P PYTHON] [-f FILENAME|FILENAME] [--change-mode]
-Flash image file to device, leave existing system intact.
+Usage: $(basename "$0") [-h] [-p ESPTOOL_PORT] [-P PYTHON] [-f FILENAME|FILENAME] [--change-mode]
+Flash image file to device, leave existing system intact."
 
     -h               Display this help and exit
     -p ESPTOOL_PORT  Set the environment variable for ESPTOOL_PORT.  If not set, ESPTOOL iterates all ports (Dangerous).
@@ -38,7 +38,7 @@ while getopts ":hp:P:f:" opt; do
             exit 0
             ;;
         p)  ESPTOOL_CMD="$ESPTOOL_CMD --port ${OPTARG}"
-	        ;;
+            ;;
         P)  PYTHON=${OPTARG}
             ;;
         f)  FILENAME=${OPTARG}
@@ -47,7 +47,7 @@ while getopts ":hp:P:f:" opt; do
             CHANGE_MODE=true
             ;;
         *)
- 	        echo "Invalid flag."
+            echo "Invalid flag."
             show_help >&2
             exit 1
             ;;
@@ -60,17 +60,17 @@ if [[ $CHANGE_MODE == true ]]; then
     exit 0
 fi
 
-[ -z "$FILENAME" -a -n "$1" ] && {
-    FILENAME=$1
+[ -z "$FILENAME" ]  && [ -n "$1" ] && {
+    FILENAME="$1"
     shift
 }
 
 if [ -f "${FILENAME}" ] && [ -z "${FILENAME##*"update"*}" ]; then
-	printf "Trying to flash update ${FILENAME}"
-	$ESPTOOL_CMD --baud 115200 write_flash 0x10000 ${FILENAME}
+    echo "Trying to flash update ${FILENAME}"
+    $ESPTOOL_CMD --baud 115200 write_flash 0x10000 "${FILENAME}"
 else
-	show_help
-	echo "Invalid file: ${FILENAME}"
+    show_help
+    echo "Invalid file: ${FILENAME}"
 fi
 
 exit 0