diff --git a/README.md b/README.md
index 764838739..08489e51d 100644
--- a/README.md
+++ b/README.md
@@ -82,6 +82,7 @@ Please see [FEATURES.md](https://codeberg.org/Freeyourgadget/Gadgetbridge/src/ma
 * Johannes Schmitt (BFH-16)
 * Lukas Schwichtenberg (Makibes HR3)
 * Daniel Dakhno (Fossil Q Hybrid)
+* Gordon Williams (Bangle.js)
 
 ## Contribute
 
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/banglejs/BangleJSConstants.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/banglejs/BangleJSConstants.java
index cb1c47165..dfcb8470b 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/banglejs/BangleJSConstants.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/banglejs/BangleJSConstants.java
@@ -1,3 +1,19 @@
+/*  Copyright (C) 2019 Gordon Williams
+
+    This file is part of Gadgetbridge.
+
+    Gadgetbridge is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Gadgetbridge is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 package nodomain.freeyourgadget.gadgetbridge.devices.banglejs;
 
 import java.util.UUID;
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/banglejs/BangleJSCoordinator.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/banglejs/BangleJSCoordinator.java
index b6bcd466c..b6a29e229 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/banglejs/BangleJSCoordinator.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/banglejs/BangleJSCoordinator.java
@@ -1,3 +1,20 @@
+/*  Copyright (C) 2016-2019 Andreas Shimokawa, Carsten Pfeiffer, Daniele
+    Gobbetti, Gordon Williams, José Rebelo
+
+    This file is part of Gadgetbridge.
+
+    Gadgetbridge is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Gadgetbridge is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 package nodomain.freeyourgadget.gadgetbridge.devices.banglejs;
 
 import android.annotation.TargetApi;
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/model/DeviceType.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/model/DeviceType.java
index 8d1500ff5..8491f6833 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/model/DeviceType.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/model/DeviceType.java
@@ -1,8 +1,8 @@
 /*  Copyright (C) 2015-2019 Andreas Böhler, Andreas Shimokawa, Carsten
-    Pfeiffer, Cre3per, Daniel Dakhno, Daniele Gobbetti, Jean-François Greffier,
-    João Paulo Barraca, José Rebelo, Kranz, ladbsoft, Manuel Ruß, maxirnilian,
-    protomors, Quallenauge, Sami Alaoui, Sebastian Kranz, Sophanimus, tiparega,
-    Vadim Kaushan
+    Pfeiffer, Cre3per, Daniel Dakhno, Daniele Gobbetti, Gordon Williams,
+    Jean-François Greffier, João Paulo Barraca, José Rebelo, Kranz, ladbsoft,
+    Manuel Ruß, maxirnilian, protomors, Quallenauge, Sami Alaoui, Sebastian
+    Kranz, Sophanimus, tiparega, Vadim Kaushan
 
     This file is part of Gadgetbridge.
 
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/DeviceSupportFactory.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/DeviceSupportFactory.java
index 45d3c9e4f..0823d3d6d 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/DeviceSupportFactory.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/DeviceSupportFactory.java
@@ -1,8 +1,8 @@
 /*  Copyright (C) 2015-2019 0nse, Andreas Böhler, Andreas Shimokawa, Carsten
-    Pfeiffer, Cre3per, criogenic, Daniel Dakhno, Daniele Gobbetti, Jean-François
-    Greffier, João Paulo Barraca, José Rebelo, Kranz, ladbsoft, Manuel Ruß,
-    maxirnilian, protomors, Quallenauge, Sami Alaoui, Sergey Trofimov, Sophanimus,
-    tiparega, Vadim Kaushan
+    Pfeiffer, Cre3per, criogenic, Daniel Dakhno, Daniele Gobbetti, Gordon Williams,
+    Jean-François Greffier, João Paulo Barraca, José Rebelo, Kranz, ladbsoft,
+    Manuel Ruß, maxirnilian, protomors, Quallenauge, Sami Alaoui, Sergey Trofimov,
+    Sophanimus, tiparega, Vadim Kaushan
 
     This file is part of Gadgetbridge.
 
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/btle/GattCallback.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/btle/GattCallback.java
index 16ec0f4f8..a15f24076 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/btle/GattCallback.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/btle/GattCallback.java
@@ -1,3 +1,19 @@
+/*  Copyright (C) 2015-2019 Andreas Shimokawa, Carsten Pfeiffer, Daniel Dakhno
+
+    This file is part of Gadgetbridge.
+
+    Gadgetbridge is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Gadgetbridge is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 /*
  * Copyright (C) 2013 The Android Open Source Project
  *
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/banglejs/BangleJSDeviceSupport.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/banglejs/BangleJSDeviceSupport.java
index 638ffae11..ccb2ce3ae 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/banglejs/BangleJSDeviceSupport.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/banglejs/BangleJSDeviceSupport.java
@@ -1,3 +1,19 @@
+/*  Copyright (C) 2019 Andreas Shimokawa, Gordon Williams
+
+    This file is part of Gadgetbridge.
+
+    Gadgetbridge is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Gadgetbridge is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 package nodomain.freeyourgadget.gadgetbridge.service.devices.banglejs;
 
 import android.bluetooth.BluetoothGatt;
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/util/DeviceHelper.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/util/DeviceHelper.java
index ef967a8b4..5581844fb 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/util/DeviceHelper.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/util/DeviceHelper.java
@@ -1,7 +1,8 @@
-/*  Copyright (C) 2015-2019 0nse, Andreas Böhler, Andreas Shimokawa, Carsten
-    Pfeiffer, Cre3per, Daniel Dakhno, Daniele Gobbetti, Jean-François Greffier,
-    João Paulo Barraca, José Rebelo, Kranz, ladbsoft, Manuel Ruß, maxirnilian,
-    protomors, Quallenauge, Sami Alaoui, Sophanimus, tiparega, Vadim Kaushan
+/*  Copyright (C) 2015-2019 0nse, Andreas Böhler, Andreas Shimokawa,
+    Carsten Pfeiffer, Cre3per, Daniel Dakhno, Daniele Gobbetti, Gordon Williams,
+    Jean-François Greffier, João Paulo Barraca, José Rebelo, Kranz, ladbsoft,
+    Manuel Ruß, maxirnilian, protomors, Quallenauge, Sami Alaoui, Sophanimus,
+    tiparega, Vadim Kaushan
 
     This file is part of Gadgetbridge.
 
diff --git a/app/src/main/res/xml/devicesettings_reserve_alarms_calendar.xml b/app/src/main/res/xml/devicesettings_reserve_alarms_calendar.xml
new file mode 100644
index 000000000..4b2d5b7b4
--- /dev/null
+++ b/app/src/main/res/xml/devicesettings_reserve_alarms_calendar.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.preference.PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <EditTextPreference
+        android:defaultValue="0"
+        android:digits="0123"
+        android:inputType="number"
+        android:key="reserve_alarms_calendar"
+        android:maxLength="1"
+        android:title="@string/miband_prefs_reserve_alarm_calendar" />
+
+</androidx.preference.PreferenceScreen>