diff --git a/rw-system.sh b/rw-system.sh
index 0e018de..fb59a3a 100644
--- a/rw-system.sh
+++ b/rw-system.sh
@@ -118,7 +118,7 @@ changeKeylayout() {
         changed=true
     fi
 
-    if getprop ro.vendor.build.fingerprint |grep -iq -E -e '^Lenovo/kunlun';then
+    if getprop ro.vendor.build.fingerprint |grep -iq -E -e '^Lenovo/' && [ -f /sys/devices/virtual/touch/tp_dev/gesture_on ];then
         cp /system/phh/lenovo-synaptics_dsx.kl /mnt/phh/keylayout/synaptics_dsx.kl
         chmod 0644 /mnt/phh/keylayout/synaptics_dsx.kl
         changed=true
diff --git a/sepolicy/lenovo.te b/sepolicy/lenovo.te
new file mode 100644
index 0000000..19e3314
--- /dev/null
+++ b/sepolicy/lenovo.te
@@ -0,0 +1,4 @@
+type sysfs_tp, file_type;
+
+#Allow treble_app access to /sys/devices/virtual/touch/tp_dev/gesture_on
+allow system_app sysfs_tp:file rw_file_perms;