diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/marstek/SolarEquipmentStatusActivity.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/marstek/SolarEquipmentStatusActivity.java
index 6ffbb4b0d..9f790f9bb 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/marstek/SolarEquipmentStatusActivity.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/marstek/SolarEquipmentStatusActivity.java
@@ -1,3 +1,19 @@
+/*  Copyright (C) 2024 Andreas Shimokawa
+
+    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 <https://www.gnu.org/licenses/>. */
 package nodomain.freeyourgadget.gadgetbridge.devices.marstek;
 
 import android.content.BroadcastReceiver;
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/marstek/MarstekB2500DeviceSupport.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/marstek/MarstekB2500DeviceSupport.java
index 02eec7349..d75f3c8d8 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/marstek/MarstekB2500DeviceSupport.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/marstek/MarstekB2500DeviceSupport.java
@@ -47,7 +47,6 @@ import nodomain.freeyourgadget.gadgetbridge.service.btle.actions.SetDeviceStateA
 import nodomain.freeyourgadget.gadgetbridge.service.serial.GBDeviceProtocol;
 import nodomain.freeyourgadget.gadgetbridge.util.DateTimeUtils;
 import nodomain.freeyourgadget.gadgetbridge.util.Prefs;
-import nodomain.freeyourgadget.gadgetbridge.util.StringUtils;
 
 
 public class MarstekB2500DeviceSupport extends AbstractBTLEDeviceSupport {
@@ -82,12 +81,8 @@ public class MarstekB2500DeviceSupport extends AbstractBTLEDeviceSupport {
     public boolean onCharacteristicChanged(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic) {
         super.onCharacteristicChanged(gatt, characteristic);
 
-        UUID characteristicUUID = characteristic.getUuid();
         byte[] value = characteristic.getValue();
 
-        LOG.info("Characteristic changed UUID: {}", characteristicUUID);
-        LOG.info("Characteristic changed value: {}", StringUtils.bytesToHex(value));
-
         if (value[0] == COMMAND_PREFIX) {
             if ((value[1] == 0x10) && (value[2] == COMMAND) && (value[3] == OPCODE_INFO1)) {
                 decodeInfos(value);