diff --git a/sync-iPhone.sh b/sync-iPhone.sh
index cc1b161..8ee25d5 100755
--- a/sync-iPhone.sh
+++ b/sync-iPhone.sh
@@ -1,35 +1,41 @@
-#!/bin/sh
+#!/bin/bash
+
+# Define required programs and libraries
 program_list=("ifuse" "ldconfig" "rsync")
 library_list=("libimobiledevice")
+
 sync_folder="$HOME/iPhone"
 sync_mount="${sync_folder}/.mnt"
 sync_data="${sync_folder}/data"
 
-# iteration thru list of programs
-for program in "${program_list[@]}"
-do
+# Check if required programs are installed
+for program in "${program_list[@]}"; do
 	if command -v "${program}" >/dev/null 2>&1
 	then
 		echo "OK, ${program} exists."
 	else
-		echo "Sorry, ${program} does not exists,"
-		echo "you have to install all of these programs first: ${program_list[@]}"
+		echo "Error: ${program} is missing. Please install: ${program_list[*]}"
 		exit 1
 	fi
 done
 
 # iteration thru list of libraries
-for library in "${library_list[@]}"
-do
+for library in "${library_list[@]}"; do
 	if ldconfig -p | grep ${library} >/dev/null 2>&1
 	then
 		echo "OK, ${library} exists."
 	else
-		echo "Sorry, the library ${library} is not installed."
-		echo "You have to install the libraries first: ${library_list[@]}"
+		echo "Error: Library ${library} is missing. Please install: ${library_list[*]}"
 		exit 2
 	fi
 done
+
+# Clear older dead mounts if they block the directory
+if [ -d "${sync_mount}" ]; then
+	fusermount -u "${sync_mount}" >/dev/null 2>&1 || umount -l "${sync_mount}" >/dev/null 2>&1
+	rmdir "${sync_mount}" >/dev/null 2>&1
+fi
+
 echo "Create the folder ${sync_mount} ..."
 if mkdir -p ${sync_mount} >/dev/null 2>&1
 then
@@ -43,36 +49,55 @@ if ifuse ${sync_mount}
 then
 	echo "ok."
 else
-	echo "did not work. Check your connection to the iPhone."
+	echo "did not work. Check your connection to the iPhone. Check PIN on the iPhone."
 	exit 3
 fi
 
-echo "RSYNC the iPhone ..."
-FROM="$sync_mount"/
-TO="$sync_data"/
+# Display storage capacity of the iPhone
+echo -e "\n--- IPHONE STORAGE USAGE ---"
+df -h "${sync_mount}"
+echo -e "----------------------------\n"
 
-while true
-do
+echo "RSYNC the iPhone ..."
+FROM="${sync_mount}/"
+TO="${sync_data}/"
+
+while true; do
 	echo "** Synchronization from ${FROM} to ${TO} **"
-	read -n 1 -p"Sync iPhone and delete old files (y)es/(n)o/(c)ancel? " response
+	read -n 1 -p "Action: (s)ync & delete / (n)ormal sync / (m)ount only & exit / (c)ancel? " response
+#	read -n 1 -p"Action: Sync iPhone and delete old files (y)es/(m)ount only/(n)o/(c)ancel? " response
 	echo
 	case ${response} in
-		[Nn]* ) rsync -avP "${FROM}" "${TO}"; break;;
-		[YyJj]* ) rsync -avP --delete "${FROM}" "${TO}"; break;;
-		[Cc]* ) break;;
-		* ) echo "Please answer yes, no or cancel.";;
+		[Nn]* )
+			mkdir -p "${sync_data}"
+			rsync -avP "${FROM}" "${TO}"
+			break
+			;;
+		[Ss]* )
+			mkdir -p "${sync_data}"
+			rsync -avP --delete "${FROM}" "${TO}"
+			break
+			;;
+		[Mm]* )
+			echo "iPhone remains mounted at ${sync_mount}. Remember to unmount manually later!"
+			exit 0 
+			;;
+		[Cc]* )
+			echo "Synchronization skipped by user."
+			break
+			;;
+		* )
+			echo "Invalid selection. Please choose y, n, m, or c."
+			;;
 	esac
 done
-echo "Memory usage on the iPhone:" && du -hs ${sync_mount}
 
-echo "Unmount the iPhone ..."
-if umount ${sync_mount}
-then
-	echo "done."
+echo "Unmounting iPhone..."
+if fusermount -u "${sync_mount}" 2>/dev/null || umount "${sync_mount}" 2>/dev/null; then
+	echo "Successfully unmounted."
+	rmdir "${sync_mount}"
 else
-	echo "The umounting procedure did not work."
+	echo "WARNING: Unmount failed. A process might still be accessing the mount directory."
 fi
-echo "Remove temporary mount point ..."
-rmdir ${sync_mount}
-echo "done."
-echo "Disk usage:" && du -hs ${sync_folder}
+
+echo "Process finished."