diff --git a/pretixscan/app/build.gradle b/pretixscan/app/build.gradle
index 3fc18809..49e358e6 100644
--- a/pretixscan/app/build.gradle
+++ b/pretixscan/app/build.gradle
@@ -129,7 +129,6 @@ dependencies {
     implementation 'com.louiscad.splitties:splitties-toast:3.0.0'
     implementation 'com.github.traex.rippleeffect:library:1.3'
     implementation 'me.dm7.barcodescanner:zxing:1.9.8'
-    implementation 'com.andrognito.pinlockview:pinlockview:2.1.0'
     implementation 'com.github.kizitonwose:CalendarView:1.0.4'
 
     implementation 'com.squareup.okhttp3:okhttp:4.9.3'
diff --git a/pretixscan/app/src/main/java/eu/pretix/pretixscan/droid/ui/KeyboardButtonView.kt b/pretixscan/app/src/main/java/eu/pretix/pretixscan/droid/ui/KeyboardButtonView.kt
new file mode 100644
index 00000000..77e0642c
--- /dev/null
+++ b/pretixscan/app/src/main/java/eu/pretix/pretixscan/droid/ui/KeyboardButtonView.kt
@@ -0,0 +1,88 @@
+package eu.pretix.pretixscan.droid.ui
+
+import android.content.Context
+import android.os.Build
+import android.util.AttributeSet
+import android.view.LayoutInflater
+import android.view.MotionEvent
+import android.view.View
+import android.widget.ImageView
+import android.widget.RelativeLayout
+import android.widget.TextView
+import eu.pretix.pretixscan.droid.R
+
+
+// (c) 2015 OrangeGangsters
+// MIT License
+// https://github.com/omadahealth/LolliPin/blob/0c523dfb7e9ee5dfcf37ad047cbb970ccd8794fb/lib/src/main/java/com/github/omadahealth/lollipin/lib/views/KeyboardButtonView.java
+
+interface KeyboardButtonClickedListener {
+
+}
+
+class KeyboardButtonView @JvmOverloads constructor(private val mContext: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0) : RelativeLayout(mContext, attrs, defStyleAttr) {
+
+    private var mKeyboardButtonClickedListener: KeyboardButtonClickedListener? = null
+    private var mRippleView: View? = null
+
+    init {
+        initializeView(attrs, defStyleAttr)
+    }
+
+    private fun initializeView(attrs: AttributeSet?, defStyleAttr: Int) {
+        if (attrs != null && !isInEditMode) {
+            val attributes = mContext.getTheme().obtainStyledAttributes(attrs, R.styleable.KeyboardButtonView,
+                    defStyleAttr, 0)
+            val text = attributes.getString(R.styleable.KeyboardButtonView_lp_keyboard_button_text)
+            val image = attributes.getDrawable(R.styleable.KeyboardButtonView_lp_keyboard_button_image)
+            val rippleEnabled = attributes.getBoolean(R.styleable.KeyboardButtonView_lp_keyboard_button_ripple_enabled, true)
+
+            attributes.recycle()
+
+            val inflater = mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
+            val view = inflater.inflate(R.layout.view_keyboard_button, this) as KeyboardButtonView
+
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                view.focusable = NOT_FOCUSABLE
+            }
+
+            if (text != null) {
+                val textView = view.findViewById(R.id.keyboard_button_textview) as TextView
+                textView?.setText(text)
+            }
+            if (image != null) {
+                val imageView = view.findViewById(R.id.keyboard_button_imageview) as ImageView
+                if (imageView != null) {
+                    imageView!!.setImageDrawable(image)
+                    imageView!!.setVisibility(View.VISIBLE)
+                }
+            }
+
+            mRippleView = view.findViewById(R.id.pin_code_keyboard_button_ripple) as View
+            //mRippleView!!.setRippleAnimationListener(this)
+            if (mRippleView != null) {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                    mRippleView!!.focusable = NOT_FOCUSABLE
+                }
+                if (!rippleEnabled) {
+                    mRippleView!!.setVisibility(View.INVISIBLE)
+                }
+            }
+        }
+    }
+
+    fun setOnRippleAnimationEndListener(keyboardButtonClickedListener: KeyboardButtonClickedListener) {
+        mKeyboardButtonClickedListener = keyboardButtonClickedListener
+    }
+
+    fun onRippleAnimationEnd() {
+        if (mKeyboardButtonClickedListener != null) {
+            //mKeyboardButtonClickedListener!!.onRippleAnimationEnd()
+        }
+    }
+
+    override fun onInterceptTouchEvent(event: MotionEvent): Boolean {
+        onTouchEvent(event)
+        return false
+    }
+}
diff --git a/pretixscan/app/src/main/java/eu/pretix/pretixscan/droid/ui/MainActivity.kt b/pretixscan/app/src/main/java/eu/pretix/pretixscan/droid/ui/MainActivity.kt
index a57352a8..e8cb62bc 100644
--- a/pretixscan/app/src/main/java/eu/pretix/pretixscan/droid/ui/MainActivity.kt
+++ b/pretixscan/app/src/main/java/eu/pretix/pretixscan/droid/ui/MainActivity.kt
@@ -42,9 +42,6 @@ import androidx.databinding.DataBindingUtil
 import androidx.databinding.ObservableField
 import androidx.preference.PreferenceManager
 import androidx.recyclerview.widget.LinearLayoutManager
-import com.andrognito.pinlockview.IndicatorDots
-import com.andrognito.pinlockview.PinLockListener
-import com.andrognito.pinlockview.PinLockView
 import com.fasterxml.jackson.databind.DeserializationFeature
 import com.fasterxml.jackson.databind.ObjectMapper
 import com.fasterxml.jackson.databind.module.SimpleModule
@@ -167,6 +164,8 @@ class MainActivity : AppCompatActivity(), ReloadableActivity, ZXingScannerView.R
 
     private var syncMessage = ""
 
+    private var pendingPinAction: ((pin: String) -> Unit)? = null
+
     companion object {
         const val PERMISSIONS_REQUEST_CAMERA = 1337
         const val PERMISSIONS_REQUEST_WRITE_STORAGE = 1338
@@ -484,6 +483,14 @@ class MainActivity : AppCompatActivity(), ReloadableActivity, ZXingScannerView.R
 
         binding.recyclerViewSearch.layoutManager = LinearLayoutManager(this)
         binding.recyclerViewSearch.addItemDecoration(androidx.recyclerview.widget.DividerItemDecoration(binding.recyclerViewSearch.context, androidx.recyclerview.widget.DividerItemDecoration.VERTICAL))
+
+        supportFragmentManager.setFragmentResultListener(PinDialog.RESULT_PIN, this) { _, bundle ->
+            val pin = bundle.getString(PinDialog.RESULT_PIN)
+            if (pin != null && conf.verifyPin(pin)) {
+                (supportFragmentManager.findFragmentByTag(PinDialog.TAG) as? PinDialog)?.dismiss()
+                pendingPinAction?.let { it(pin) }
+            }
+        }
     }
 
     private fun eventButtonText(): String {
@@ -1298,35 +1305,8 @@ class MainActivity : AppCompatActivity(), ReloadableActivity, ZXingScannerView.R
             valid("")
             return
         }
-        val view = layoutInflater.inflate(R.layout.dialog_pin, null)
-        val dialog = AlertDialog.Builder(this)
-                .setView(view)
-                .create()
-        dialog.setOnShowListener {
-            val mPinLockListener: PinLockListener = object : PinLockListener {
-                override fun onComplete(pin: String) {
-                    this.onPinChange(pin.length, pin)
-                }
-
-                override fun onEmpty() {
-                }
-
-                override fun onPinChange(pinLength: Int, intermediatePin: String) {
-                    if (conf.verifyPin(intermediatePin)) {
-                        dialog.dismiss()
-                        valid(intermediatePin)
-                    }
-                }
-            }
-
-            val lockView = view.findViewById(R.id.pin_lock_view) as PinLockView
-            lockView.pinLength = conf.getPinLength()
-            lockView.setPinLockListener(mPinLockListener)
-            val idots = view.findViewById(R.id.indicator_dots) as IndicatorDots
-            idots.pinLength = conf.getPinLength()
-            lockView.attachIndicatorDots(idots);
-        }
-        dialog.show()
+        pendingPinAction = valid
+        PinDialog().show(supportFragmentManager)
     }
 
     fun startWithPIN(intent: Intent, key: String, resultCode: Int? = null, bundle: Bundle? = null) {
diff --git a/pretixscan/app/src/main/java/eu/pretix/pretixscan/droid/ui/PinDialog.kt b/pretixscan/app/src/main/java/eu/pretix/pretixscan/droid/ui/PinDialog.kt
new file mode 100644
index 00000000..5a070822
--- /dev/null
+++ b/pretixscan/app/src/main/java/eu/pretix/pretixscan/droid/ui/PinDialog.kt
@@ -0,0 +1,97 @@
+package eu.pretix.pretixscan.droid.ui
+
+import android.app.Dialog
+import android.content.DialogInterface
+import android.os.Bundle
+import android.view.KeyEvent
+import android.view.View
+import androidx.core.os.bundleOf
+import androidx.databinding.ObservableField
+import androidx.fragment.app.DialogFragment
+import androidx.fragment.app.FragmentManager
+import androidx.fragment.app.setFragmentResult
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import eu.pretix.pretixscan.droid.databinding.DialogPinBinding
+import java.util.Collections
+
+
+class PINInputDataHolder() {
+    val input = ObservableField("")
+    val text = ObservableField("")
+}
+
+class PinDialog : DialogFragment() {
+    companion object {
+        const val TAG = "PinDialogFragment"
+        const val RESULT_PIN = "pin"
+        const val RESULT_DISMISS = "dismiss"
+    }
+
+    val data = PINInputDataHolder()
+
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+        data.input.set("")
+
+        val binding = DialogPinBinding.inflate(layoutInflater)
+        binding.data = data
+
+        binding.keyboardButtonView0.setOnClickListener { pushDigit("0") }
+        binding.keyboardButtonView00.visibility = View.INVISIBLE
+        binding.keyboardButtonView1.setOnClickListener { pushDigit("1") }
+        binding.keyboardButtonView2.setOnClickListener { pushDigit("2") }
+        binding.keyboardButtonView3.setOnClickListener { pushDigit("3") }
+        binding.keyboardButtonView4.setOnClickListener { pushDigit("4") }
+        binding.keyboardButtonView5.setOnClickListener { pushDigit("5") }
+        binding.keyboardButtonView6.setOnClickListener { pushDigit("6") }
+        binding.keyboardButtonView7.setOnClickListener { pushDigit("7") }
+        binding.keyboardButtonView8.setOnClickListener { pushDigit("8") }
+        binding.keyboardButtonView9.setOnClickListener { pushDigit("9") }
+        binding.keyboardButtonViewBackspace.setOnClickListener { pushBackspace() }
+
+        return MaterialAlertDialogBuilder(requireContext())
+            .setView(binding.root)
+            .setOnKeyListener { _, keyCode, event ->
+                if (event.action != KeyEvent.ACTION_DOWN) return@setOnKeyListener false
+
+                if (event.displayLabel.toString().matches(Regex("^[0-9]$"))) {
+                    pushDigit(event.displayLabel.toString())
+                    return@setOnKeyListener true
+                }
+                if (keyCode == KeyEvent.KEYCODE_DEL) {
+                    pushBackspace()
+                    return@setOnKeyListener true
+                }
+                if (keyCode == KeyEvent.KEYCODE_ESCAPE) {
+                    dismiss()
+                    return@setOnKeyListener true
+                }
+
+                return@setOnKeyListener false
+            }
+            .create()
+    }
+
+    protected fun pushBackspace() {
+        val current = data.input.get()!!
+        if (current.isNotBlank()) {
+            data.input.set(current.substring(0, current.length - 1))
+        }
+        data.text.set(Collections.nCopies(data.input.get()!!.length, "*").joinToString(""))
+    }
+
+    protected fun pushDigit(digit: String) {
+        val current = data.input.get()!!
+        data.input.set(current + digit)
+        data.text.set(Collections.nCopies(data.input.get()!!.length, "*").joinToString(""))
+        setFragmentResult(RESULT_PIN, bundleOf(RESULT_PIN to data.input.get()!!))
+    }
+
+    override fun onDismiss(dialog: DialogInterface) {
+        setFragmentResult(RESULT_DISMISS, bundleOf())
+        super.onDismiss(dialog)
+    }
+
+    fun show(manager: FragmentManager) {
+        super.show(manager, TAG)
+    }
+}
\ No newline at end of file
diff --git a/pretixscan/app/src/main/res/drawable/ic_backspace_black_24dp.xml b/pretixscan/app/src/main/res/drawable/ic_backspace_black_24dp.xml
new file mode 100644
index 00000000..35b3af30
--- /dev/null
+++ b/pretixscan/app/src/main/res/drawable/ic_backspace_black_24dp.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M22,3L7,3c-0.69,0 -1.23,0.35 -1.59,0.88L0,12l5.41,8.11c0.36,0.53 0.9,0.89 1.59,0.89h15c1.1,0 2,-0.9 2,-2L24,5c0,-1.1 -0.9,-2 -2,-2zM19,15.59L17.59,17 14,13.41 10.41,17 9,15.59 12.59,12 9,8.41 10.41,7 14,10.59 17.59,7 19,8.41 15.41,12 19,15.59z"/>
+</vector>
diff --git a/pretixscan/app/src/main/res/layout/dialog_pin.xml b/pretixscan/app/src/main/res/layout/dialog_pin.xml
index 2f01ad43..8216d3c9 100644
--- a/pretixscan/app/src/main/res/layout/dialog_pin.xml
+++ b/pretixscan/app/src/main/res/layout/dialog_pin.xml
@@ -1,32 +1,197 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/ScrollView1"
-    android:layout_width="match_parent"
-    android:layout_height="0dip"
-    android:layout_weight="1">
-
-    <com.andrognito.pinlockview.IndicatorDots
-        android:id="@+id/indicator_dots"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginTop="24dp"
-        app:dotEmptyBackground="@color/pretix_brand_lightgrey"
-        app:dotFilledBackground="@color/pretix_brand_dark"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
-
-    <com.andrognito.pinlockview.PinLockView
-        android:id="@+id/pin_lock_view"
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <data>
+        <variable
+            name="data"
+            type="eu.pretix.pretixscan.droid.ui.PINInputDataHolder" />
+        <import type="android.view.View" />
+    </data>
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:id="@+id/activity_operation_input"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_marginTop="16dp"
-        app:keypadTextColor="@color/pretix_brand_dark"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@id/indicator_dots" />
-
-</androidx.constraintlayout.widget.ConstraintLayout>
+        android:minWidth="@dimen/dialog_minwidth">
+
+        <View
+            android:id="@+id/view"
+            android:layout_width="0dp"
+            android:layout_height="80dp"
+            android:background="@color/pretix_brand_dark"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <TextView
+            android:id="@+id/textView31"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:gravity="center"
+            android:text="@{data.text}"
+            android:textAppearance="@style/TextAppearance.AppCompat.Large"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/view" />
+
+        <LinearLayout
+            android:id="@+id/llKeyboard"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/textView31">
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="8dp"
+                android:orientation="horizontal">
+
+                <eu.pretix.pretixscan.droid.ui.KeyboardButtonView
+                    android:id="@+id/keyboardButtonView1"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:minWidth="16dp"
+                    android:minHeight="16dp"
+                    app:lp_keyboard_button_text="1" />
+
+                <eu.pretix.pretixscan.droid.ui.KeyboardButtonView
+                    android:id="@+id/keyboardButtonView2"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:minWidth="16dp"
+                    android:minHeight="16dp"
+                    app:lp_keyboard_button_text="2" />
+
+                <eu.pretix.pretixscan.droid.ui.KeyboardButtonView
+                    android:id="@+id/keyboardButtonView3"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:minWidth="16dp"
+                    android:minHeight="16dp"
+                    app:lp_keyboard_button_text="3" />
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <eu.pretix.pretixscan.droid.ui.KeyboardButtonView
+                    android:id="@+id/keyboardButtonView4"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:minWidth="16dp"
+                    android:minHeight="16dp"
+                    app:lp_keyboard_button_text="4" />
+
+                <eu.pretix.pretixscan.droid.ui.KeyboardButtonView
+                    android:id="@+id/keyboardButtonView5"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:minWidth="16dp"
+                    android:minHeight="16dp"
+                    app:lp_keyboard_button_text="5" />
+
+                <eu.pretix.pretixscan.droid.ui.KeyboardButtonView
+                    android:id="@+id/keyboardButtonView6"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:minWidth="16dp"
+                    android:minHeight="16dp"
+                    app:lp_keyboard_button_text="6" />
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <eu.pretix.pretixscan.droid.ui.KeyboardButtonView
+                    android:id="@+id/keyboardButtonView7"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:minWidth="16dp"
+                    android:minHeight="16dp"
+                    app:lp_keyboard_button_text="7" />
+
+                <eu.pretix.pretixscan.droid.ui.KeyboardButtonView
+                    android:id="@+id/keyboardButtonView8"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:minWidth="16dp"
+                    android:minHeight="16dp"
+                    app:lp_keyboard_button_text="8" />
+
+                <eu.pretix.pretixscan.droid.ui.KeyboardButtonView
+                    android:id="@+id/keyboardButtonView9"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:minWidth="16dp"
+                    android:minHeight="16dp"
+                    app:lp_keyboard_button_text="9" />
+            </LinearLayout>
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <eu.pretix.pretixscan.droid.ui.KeyboardButtonView
+                    android:id="@+id/keyboardButtonView00"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:minWidth="16dp"
+                    android:minHeight="16dp"
+                    app:lp_keyboard_button_text="00" />
+
+                <eu.pretix.pretixscan.droid.ui.KeyboardButtonView
+                    android:id="@+id/keyboardButtonView0"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:minWidth="16dp"
+                    android:minHeight="16dp"
+                    app:lp_keyboard_button_text="0" />
+
+                <eu.pretix.pretixscan.droid.ui.KeyboardButtonView
+                    android:id="@+id/keyboardButtonViewBackspace"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_weight="1"
+                    android:minWidth="16dp"
+                    android:minHeight="16dp"
+                    app:lp_keyboard_button_image="@drawable/ic_backspace_black_24dp" />
+            </LinearLayout>
+        </LinearLayout>
+
+        <TextView
+            android:id="@+id/textView_headline"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:layout_marginTop="8dp"
+            android:layout_marginEnd="8dp"
+            android:layout_marginBottom="8dp"
+            android:text="@string/pin_protection_enter"
+            android:textAppearance="@style/TextAppearance.AppCompat.Large.Inverse"
+            app:layout_constraintBottom_toBottomOf="@+id/view"
+            app:layout_constraintEnd_toEndOf="@+id/view"
+            app:layout_constraintStart_toStartOf="@+id/view"
+            app:layout_constraintTop_toTopOf="@+id/view" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</layout>
\ No newline at end of file
diff --git a/pretixscan/app/src/main/res/layout/view_keyboard_button.xml b/pretixscan/app/src/main/res/layout/view_keyboard_button.xml
new file mode 100644
index 00000000..6191a8ab
--- /dev/null
+++ b/pretixscan/app/src/main/res/layout/view_keyboard_button.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/pin_code_keyboard_button_ripple"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_gravity="center_vertical"
+    android:paddingBottom="@dimen/keyboard_button_padding"
+    android:paddingTop="@dimen/keyboard_button_padding"
+    android:clickable="true"
+    android:focusable="true"
+    android:foreground="?android:attr/selectableItemBackground">
+
+    <TextView
+        android:id="@+id/keyboard_button_textview"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerInParent="true"
+        android:maxLines="1"
+        android:textColor="@color/text_color"
+        android:textSize="@dimen/keyboard_button_text_size" />
+
+    <ImageView
+        android:id="@+id/keyboard_button_imageview"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerInParent="true"
+        android:visibility="gone" />
+
+</RelativeLayout>
\ No newline at end of file
diff --git a/pretixscan/app/src/main/res/raw/about.html b/pretixscan/app/src/main/res/raw/about.html
index f58e6d04..4a02bd2f 100644
--- a/pretixscan/app/src/main/res/raw/about.html
+++ b/pretixscan/app/src/main/res/raw/about.html
@@ -19,6 +19,7 @@
 <strong>Raven</strong> by Sentry – BSD 3-clause<br><br>
 <strong>libpretixsync</strong> by Raphael Michel – Apache License 2.0<br><br>
 <strong>libpretixprint</strong> by Raphael Michel – Apache License 2.0<br><br>
+<strong>LolliPin</strong> (c) OrangeGangsters – MIT License<br><br>
 <strong>Barcodescanner Integration</strong> by Dushyanth Maguluru – Apache License 2.0<br><br>
 <strong>QLCipher</strong> by Zetetic LLC – BSD 3-clause<br><br>
 <strong>GPL license</strong><br/><br/>
diff --git a/pretixscan/app/src/main/res/values-de/strings.xml b/pretixscan/app/src/main/res/values-de/strings.xml
index 5dbe09b7..b347e245 100644
--- a/pretixscan/app/src/main/res/values-de/strings.xml
+++ b/pretixscan/app/src/main/res/values-de/strings.xml
@@ -154,6 +154,7 @@
     <string name="pin_protection_statistics">Statistiken sperren</string>
     <string name="pin_protection_switch_event">Veranstaltungswechsel sperren</string>
     <string name="pin_protection_switch_mode">Moduswechsel sperren</string>
+    <string name="pin_protection_enter">PIN eingeben</string>
     <string name="settings_label_verification">Ticketkontrolle</string>
     <string name="settings_label_sync">Synchronisierung</string>
     <string name="settings_label_ui">Benutzeroberfläche</string>
diff --git a/pretixscan/app/src/main/res/values/attrs.xml b/pretixscan/app/src/main/res/values/attrs.xml
new file mode 100644
index 00000000..2dcbe121
--- /dev/null
+++ b/pretixscan/app/src/main/res/values/attrs.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <declare-styleable name="KeyboardButtonView">
+        <attr name="lp_keyboard_button_text" format="string" />
+        <attr name="lp_keyboard_button_image" format="integer" />
+        <attr name="lp_keyboard_button_ripple_enabled" format="boolean" />
+        <attr name="lp_pin_forgot_dialog_title" format="string" />
+        <attr name="lp_pin_forgot_dialog_content" format="string" />
+        <attr name="lp_pin_forgot_dialog_positive" format="string" />
+        <attr name="lp_pin_forgot_dialog_negative" format="string" />
+    </declare-styleable>
+</resources>
\ No newline at end of file
diff --git a/pretixscan/app/src/main/res/values/strings.xml b/pretixscan/app/src/main/res/values/strings.xml
index ba404396..2dbc7d6a 100644
--- a/pretixscan/app/src/main/res/values/strings.xml
+++ b/pretixscan/app/src/main/res/values/strings.xml
@@ -167,6 +167,7 @@
     <string name="pin_protection_statistics">Protect statistics</string>
     <string name="pin_protection_switch_event">Protect event switch</string>
     <string name="pin_protection_switch_mode">Protect mode switch</string>
+    <string name="pin_protection_enter">Enter PIN</string>
     <string name="currently_inside">currently attending</string>
     <string name="settings_label_covid_check">COVID-19 Check</string>
     <string name="pref_covid_autocheckin">Mark ticket automatically as verified</string>