diff --git a/README.md b/README.md
index 6820328..759c692 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,13 @@
-# reset_android_gatekeeper_password
+# Reset Android M Password
+
+Script cleans lockscreen pattern/password/PIN (not fingerprint) from rooted Android M.
+
+To use:
+1. Connect device via USB
+2. Make sure ``adb devices`` detects the device
+3. Run:
+```
+./clean_lock_password.sh
+```
+
+Script will remove password and pattern from android filesystem and replace locksettings database.
diff --git a/clean_lock_passwd.sh b/clean_lock_passwd.sh
new file mode 100644
index 0000000..20dea65
--- /dev/null
+++ b/clean_lock_passwd.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+
+adb root
+adb remount
+
+# Remove old passwords
+adb shell rm /data/system/gatekeeper.password.key
+adb shell touch /data/system/gatekeeper.password.key
+adb shell rm /data/system/gatekeeper.pattern.key
+adb shell touch /data/system/gatekeeper.password.key
+
+# Copy virgin version of locksettings DB
+adb push locksettings.db-shm /data/system/
+adb push locksettings.db-wal /data/system/
+
+adb reboot
diff --git a/locksettings.db-shm b/locksettings.db-shm
new file mode 100644
index 0000000..d2d9660
Binary files /dev/null and b/locksettings.db-shm differ
diff --git a/locksettings.db-wal b/locksettings.db-wal
new file mode 100644
index 0000000..88e689f
Binary files /dev/null and b/locksettings.db-wal differ