diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/adapter/GBDeviceAdapterv2.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/adapter/GBDeviceAdapterv2.java
index e9b057f05..9c38d606e 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/adapter/GBDeviceAdapterv2.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/adapter/GBDeviceAdapterv2.java
@@ -146,7 +146,7 @@ public class GBDeviceAdapterv2 extends RecyclerView.Adapter<GBDeviceAdapterv2.Vi
             }
         } else if (BatteryState.NO_BATTERY.equals(batteryState) && batteryVoltage != GBDevice.BATTERY_UNKNOWN) {
             holder.batteryStatusBox.setVisibility(View.VISIBLE);
-            holder.batteryStatusLabel.setText(String.format(Locale.getDefault(), "%.1fV", batteryVoltage));
+            holder.batteryStatusLabel.setText(String.format(Locale.getDefault(), "%.2f", batteryVoltage));
             holder.batteryIcon.setImageLevel(200);
         }
 
@@ -378,16 +378,23 @@ public class GBDeviceAdapterv2 extends RecyclerView.Adapter<GBDeviceAdapterv2.Vi
                     ColorPickerDialog.Builder builder = ColorPickerDialog.newBuilder();
                     builder.setDialogTitle(R.string.preferences_led_color);
 
+                    int[] presets = coordinator.getColorPresets();
+
                     builder.setColor((int) device.getExtraInfo("led_color"));
+                    builder.setShowAlphaSlider(false);
+                    builder.setShowColorShades(false);
                     if (coordinator.supportsRgbLedColor()) {
                         builder.setAllowCustom(true);
-                        builder.setShowAlphaSlider(false);
-                        builder.setAllowPresets(true);
+                        if (presets.length == 0) {
+                            builder.setDialogType(ColorPickerDialog.TYPE_CUSTOM);
+                        }
                     } else {
                         builder.setAllowCustom(false);
+                    }
+
+                    if (presets.length > 0) {
                         builder.setAllowPresets(true);
-                        builder.setShowColorShades(false);
-                        builder.setPresets(coordinator.getColorPresets());
+                        builder.setPresets(presets);
                     }
 
                     ColorPickerDialog dialog = builder.create();
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/roidmi/Roidmi1Coordinator.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/roidmi/Roidmi1Coordinator.java
index 47351dd01..caba200a6 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/roidmi/Roidmi1Coordinator.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/roidmi/Roidmi1Coordinator.java
@@ -49,9 +49,4 @@ public class Roidmi1Coordinator extends RoidmiCoordinator {
     public DeviceType getDeviceType() {
         return DeviceType.ROIDMI;
     }
-
-    @Override
-    public int[] getColorPresets() {
-        return RoidmiConst.COLOR_PRESETS;
-    }
 }
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/roidmi/Roidmi3Coordinator.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/roidmi/Roidmi3Coordinator.java
index 10c351844..81fb6b2e9 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/roidmi/Roidmi3Coordinator.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/roidmi/Roidmi3Coordinator.java
@@ -36,8 +36,7 @@ public class Roidmi3Coordinator extends RoidmiCoordinator {
             String name = device.getName();
 
             if (name != null && name.contains("Roidmi Music Blue C")) {
-                LOG.warn("Found a Roidmi 3, but support is disabled.");
-                return DeviceType.UNKNOWN; // TODO Roidmi 3 is not working atm
+                return DeviceType.ROIDMI3;
             }
         } catch (Exception ex) {
             LOG.error("unable to check device support", ex);
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/roidmi/RoidmiCoordinator.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/roidmi/RoidmiCoordinator.java
index 39d7ce76e..2b6fa4295 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/roidmi/RoidmiCoordinator.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/roidmi/RoidmiCoordinator.java
@@ -132,4 +132,9 @@ public abstract class RoidmiCoordinator extends AbstractDeviceCoordinator {
     public boolean supportsLedColor() {
         return true;
     }
+
+    @Override
+    public int[] getColorPresets() {
+        return RoidmiConst.COLOR_PRESETS;
+    }
 }
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/impl/GBDevice.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/impl/GBDevice.java
index 2adc2ae71..766ad799b 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/impl/GBDevice.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/impl/GBDevice.java
@@ -274,6 +274,7 @@ public class GBDevice implements Parcelable {
         setFirmwareVersion(null);
         setFirmwareVersion2(null);
         setRssi(RSSI_UNKNOWN);
+        resetExtraInfos();
         if (mBusyTask != null) {
             unsetBusyTask();
         }
@@ -403,6 +404,13 @@ public class GBDevice implements Parcelable {
         mExtraInfos.put(key, info);
     }
 
+    /**
+     * Deletes all the extra infos
+     */
+    public void resetExtraInfos() {
+        mExtraInfos = null;
+    }
+
     /**
      * Ranges from 0-100 (percent), or -1 if unknown
      *
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/AbstractDeviceSupport.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/AbstractDeviceSupport.java
index dd969d237..1f995e4ca 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/AbstractDeviceSupport.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/AbstractDeviceSupport.java
@@ -216,7 +216,7 @@ public abstract class AbstractDeviceSupport implements DeviceSupport {
 
     protected void handleGBDeviceEvent(GBDeviceEventLEDColor colorEvent) {
         Context context = getContext();
-        LOG.info("Got event for LED Color");
+        LOG.info("Got event for LED Color: #" + Integer.toHexString(colorEvent.color).toUpperCase());
         if (gbDevice == null) {
             return;
         }
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/roidmi/Roidmi3Protocol.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/roidmi/Roidmi3Protocol.java
index a4d6412e7..38d192837 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/roidmi/Roidmi3Protocol.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/roidmi/Roidmi3Protocol.java
@@ -24,6 +24,7 @@ import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEventBatteryInf
 import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEventFmFrequency;
 import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEventLEDColor;
 import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice;
+import nodomain.freeyourgadget.gadgetbridge.model.BatteryState;
 import nodomain.freeyourgadget.gadgetbridge.util.GB;
 
 public class Roidmi3Protocol extends RoidmiProtocol {
@@ -40,7 +41,7 @@ public class Roidmi3Protocol extends RoidmiProtocol {
     private static final byte[] COMMAND_GET_VOLTAGE = new byte[]{0x06, (byte) 0x81};
 
     private static final byte[] COMMAND_SET_COLOR = new byte[]{0x02, 0x01, 0x00, 0x00, 0x00};
-    private static final byte[] COMMAND_SET_FREQUENCY = new byte[]{0x05, (byte) 0x81, 0x09, 0x64};
+    private static final byte[] COMMAND_SET_FREQUENCY = new byte[]{0x05, 0x01, 0x09, 0x64};
     private static final byte[] COMMAND_DENOISE_ON = new byte[]{0x05, 0x06, 0x12};
     private static final byte[] COMMAND_DENOISE_OFF = new byte[]{0x05, 0x06, 0x00};
 
@@ -58,7 +59,7 @@ public class Roidmi3Protocol extends RoidmiProtocol {
             return null;
         }
 
-        if (calcChecksum(res) != res[res.length - 2]) {
+        if (calcChecksum(res) != res[res.length - 1]) {
             LOG.info("Invalid response checksum");
             return null;
         }
@@ -68,21 +69,22 @@ public class Roidmi3Protocol extends RoidmiProtocol {
             return null;
         }
 
-        if (res[1] != (byte) 0x81) {
-            LOG.error("Unrecognized response" + GB.hexdump(res, 0, res.length));
-            return null;
+        if (res[2] != (byte) 0x81) {
+            LOG.warn("Potentially unsupported response: " + GB.hexdump(res, 0, res.length));
         }
 
         if (res[1] == RESPONSE_VOLTAGE) {
             String voltageHex = GB.hexdump(res, 3, 2);
-            float voltage = Float.valueOf(voltageHex) / 10.0f;
+            float voltage = Float.valueOf(voltageHex) / 100.0f;
             LOG.debug("Got voltage: " + voltage);
             GBDeviceEventBatteryInfo evBattery = new GBDeviceEventBatteryInfo();
+            evBattery.state = BatteryState.NO_BATTERY;
+            evBattery.level = GBDevice.BATTERY_UNKNOWN;
             evBattery.voltage = voltage;
             return new GBDeviceEvent[]{evBattery};
         } else if (res[1] == RESPONSE_COLOR) {
-            LOG.debug("Got color: " + GB.hexdump(res, 3, 3));
-            int color = res[3] << 16 | res[4] << 8 | res[4];
+            LOG.debug("Got color: #" + GB.hexdump(res, 3, 3));
+            int color = 0xFF000000 | ((res[3] << 16) & 0xFF0000) | ((res[4] << 8) & 0xFF00) | (res[5] & 0xFF);
             GBDeviceEventLEDColor evColor = new GBDeviceEventLEDColor();
             evColor.color = color;
             return new GBDeviceEvent[]{evColor};
@@ -94,7 +96,7 @@ public class Roidmi3Protocol extends RoidmiProtocol {
             evFrequency.frequency = frequency;
             return new GBDeviceEvent[]{evFrequency};
         } else {
-            LOG.error("Unrecognized response" + GB.hexdump(res, 0, res.length));
+            LOG.error("Unrecognized response: " + GB.hexdump(res, 0, res.length));
             return null;
         }
     }
@@ -103,9 +105,9 @@ public class Roidmi3Protocol extends RoidmiProtocol {
     public byte[] encodeLedColor(int color) {
         byte[] cmd = COMMAND_SET_COLOR.clone();
 
-        cmd[2] = (byte) color;
+        cmd[2] = (byte) (color >> 16);
         cmd[3] = (byte) (color >> 8);
-        cmd[4] = (byte) (color >> 16);
+        cmd[4] = (byte) color;
 
         return encodeCommand(cmd);
     }
@@ -144,7 +146,7 @@ public class Roidmi3Protocol extends RoidmiProtocol {
     }
 
     public byte[] encodeGetVoltage() {
-        return COMMAND_GET_VOLTAGE;
+        return encodeCommand(COMMAND_GET_VOLTAGE);
     }
 
     public byte[] encodeDenoise(boolean enabled) {