diff --git a/src/scripts/encore-normal b/src/scripts/encore-normal
index 7e94656..69575ac 100644
--- a/src/scripts/encore-normal
+++ b/src/scripts/encore-normal
@@ -18,11 +18,19 @@ apply() {
 	fi
 }
 
+change_permission() {
+	if [ -f $2 ]; then
+		chmod $1 $2
+	fi
+}
+
 # Disable battery saver module
-if grep -qo '[0-9]\+' /sys/module/battery_saver/parameters/enabled; then
-	apply 0 /sys/module/battery_saver/parameters/enabled
-else
-	apply N /sys/module/battery_saver/parameters/enabled
+if [ -f /sys/module/battery_saver/parameters/enabled ]; then
+	if grep -qo '[0-9]\+' /sys/module/battery_saver/parameters/enabled; then
+		apply 0 /sys/module/battery_saver/parameters/enabled
+	else
+		apply N /sys/module/battery_saver/parameters/enabled
+	fi
 fi
 
 if [ -f "/sys/kernel/debug/sched_features" ]; then
@@ -69,7 +77,7 @@ done &
 for path in /sys/devices/system/cpu/cpufreq/policy*; do
 	apply "$default_cpu_gov" "$path/scaling_governor"
 done &
-chmod 644 /sys/devices/virtual/thermal/thermal_message/cpu_limits
+change_permission 644 /sys/devices/virtual/thermal/thermal_message/cpu_limits
 apply 1 /sys/devices/system/cpu/cpu1/online
 
 # I/O Tweaks
@@ -264,4 +272,5 @@ case "$soc" in
 5) tensor_tweak ;;
 esac
 
+wait
 exit 0
diff --git a/src/scripts/encore-performance b/src/scripts/encore-performance
index 2456b91..4b8b9eb 100644
--- a/src/scripts/encore-performance
+++ b/src/scripts/encore-performance
@@ -13,11 +13,19 @@ apply() {
 	fi
 }
 
+change_permission() {
+	if [ -f $2 ]; then
+		chmod $1 $2
+	fi
+}
+
 # Disable battery saver module
-if grep -qo '[0-9]\+' /sys/module/battery_saver/parameters/enabled; then
-	apply 0 /sys/module/battery_saver/parameters/enabled
-else
-	apply N /sys/module/battery_saver/parameters/enabled
+if [ -f /sys/module/battery_saver/parameters/enabled ]; then
+	if grep -qo '[0-9]\+' /sys/module/battery_saver/parameters/enabled; then
+		apply 0 /sys/module/battery_saver/parameters/enabled
+	else
+		apply N /sys/module/battery_saver/parameters/enabled
+	fi
 fi
 
 if [ -f "/sys/kernel/debug/sched_features" ]; then
@@ -67,6 +75,7 @@ for path in /sys/devices/system/cpu/cpufreq/policy*; do
 	apply "cpu$(awk '{print $1}' $path/affected_cpus) $cpu_maxfreq" /sys/devices/virtual/thermal/thermal_message/cpu_limits
 	apply "$cpu_maxfreq" $path/scaling_max_freq
 done &
+change_permission 000 /sys/devices/virtual/thermal/thermal_message/cpu_limits
 apply 1 /sys/devices/system/cpu/cpu1/online
 
 # I/O Tweaks
@@ -251,4 +260,5 @@ case "$soc" in
 5) tensor_tweak ;;
 esac
 
+wait
 exit 0
diff --git a/src/scripts/encore-powersave b/src/scripts/encore-powersave
index d45d585..9a2fb9b 100644
--- a/src/scripts/encore-powersave
+++ b/src/scripts/encore-powersave
@@ -14,10 +14,12 @@ apply() {
 }
 
 # Enable battery saver module
-if grep -qo '[0-9]\+' /sys/module/battery_saver/parameters/enabled; then
-	apply 1 /sys/module/battery_saver/parameters/enabled
-else
-	apply Y /sys/module/battery_saver/parameters/enabled
+if [ -f /sys/module/battery_saver/parameters/enabled ]; then
+	if grep -qo '[0-9]\+' /sys/module/battery_saver/parameters/enabled; then
+		apply 1 /sys/module/battery_saver/parameters/enabled
+	else
+		apply Y /sys/module/battery_saver/parameters/enabled
+	fi
 fi
 
 # Disable cpu1 to save some power
@@ -45,8 +47,12 @@ mediatek_tweak() {
 	fi
 
 	# DRAM frequency
-	apply "$(cat /sys/devices/platform/10012000.dvfsrc/helio-dvfsrc/dvfsrc_opp_table | grep -o '\[[^]]*\]' | grep -oE '[+-]?[0-9]+' | sort -nr | head -n 1)" /sys/devices/platform/10012000.dvfsrc/helio-dvfsrc/dvfsrc_req_ddr_opp
-	apply "$(cat /sys/kernel/helio-dvfsrc/dvfsrc_opp_table | grep -o '\[[^]]*\]' | grep -oE '[+-]?[0-9]+' | sort -nr | head -n 1)" /sys/kernel/helio-dvfsrc/dvfsrc_force_vcore_dvfs_opp
+	if [ -f /sys/devices/platform/10012000.dvfsrc/helio-dvfsrc/dvfsrc_opp_table ]; then
+		apply "$(cat /sys/devices/platform/10012000.dvfsrc/helio-dvfsrc/dvfsrc_opp_table | grep -o '\[[^]]*\]' | grep -oE '[+-]?[0-9]+' | sort -nr | head -n 1)" /sys/devices/platform/10012000.dvfsrc/helio-dvfsrc/dvfsrc_req_ddr_opp
+	elif [ -f /sys/kernel/helio-dvfsrc/dvfsrc_opp_table ]; then
+		apply "$(cat /sys/kernel/helio-dvfsrc/dvfsrc_opp_table | grep -o '\[[^]]*\]' | grep -oE '[+-]?[0-9]+' | sort -nr | head -n 1)" /sys/kernel/helio-dvfsrc/dvfsrc_force_vcore_dvfs_opp
+	fi
+
 	apply "powersave" /sys/class/devfreq/mtk-dvfsrc-devfreq/governor
 	apply "powersave" /sys/devices/platform/soc/1c00f000.dvfsrc/mtk-dvfsrc-devfreq/devfreq/mtk-dvfsrc-devfreq/governor
 }
@@ -168,4 +174,5 @@ case "$soc" in
 5) tensor_tweak ;;
 esac
 
+wait
 exit 0