diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/huami/zeppos/ZeppOsAgpsInstallHandler.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/huami/zeppos/ZeppOsAgpsInstallHandler.java
index 5ba44a5ca..1d910b7b6 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/huami/zeppos/ZeppOsAgpsInstallHandler.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/huami/zeppos/ZeppOsAgpsInstallHandler.java
@@ -28,10 +28,13 @@ import java.io.InputStream;
 
 import nodomain.freeyourgadget.gadgetbridge.R;
 import nodomain.freeyourgadget.gadgetbridge.activities.InstallActivity;
+import nodomain.freeyourgadget.gadgetbridge.devices.DeviceCoordinator;
 import nodomain.freeyourgadget.gadgetbridge.devices.InstallHandler;
+import nodomain.freeyourgadget.gadgetbridge.devices.huami.Huami2021Coordinator;
 import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice;
 import nodomain.freeyourgadget.gadgetbridge.model.GenericItem;
 import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.zeppos.operations.ZeppOsAgpsFile;
+import nodomain.freeyourgadget.gadgetbridge.util.DeviceHelper;
 import nodomain.freeyourgadget.gadgetbridge.util.FileUtils;
 import nodomain.freeyourgadget.gadgetbridge.util.UriHelper;
 
@@ -76,6 +79,20 @@ public class ZeppOsAgpsInstallHandler implements InstallHandler {
             return;
         }
 
+        final DeviceCoordinator coordinator = DeviceHelper.getInstance().getCoordinator(device);
+        if (!(coordinator instanceof Huami2021Coordinator)) {
+            LOG.warn("Coordinator is not a Huami2021Coordinator: {}", coordinator.getClass());
+            installActivity.setInfoText(mContext.getString(R.string.fwapp_install_device_not_supported));
+            installActivity.setInstallEnabled(false);
+            return;
+        }
+        final Huami2021Coordinator huami2021coordinator = (Huami2021Coordinator) coordinator;
+        if (!huami2021coordinator.supportsAgpsUpdates()) {
+            installActivity.setInfoText(mContext.getString(R.string.fwapp_install_device_not_supported));
+            installActivity.setInstallEnabled(false);
+            return;
+        }
+
         if (!device.isInitialized()) {
             installActivity.setInfoText(mContext.getString(R.string.fwapp_install_device_not_ready));
             installActivity.setInstallEnabled(false);
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/huami/zeppos/ZeppOsGpxRouteInstallHandler.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/huami/zeppos/ZeppOsGpxRouteInstallHandler.java
index bf22362f8..6b5f44290 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/huami/zeppos/ZeppOsGpxRouteInstallHandler.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/huami/zeppos/ZeppOsGpxRouteInstallHandler.java
@@ -28,10 +28,13 @@ import java.io.InputStream;
 
 import nodomain.freeyourgadget.gadgetbridge.R;
 import nodomain.freeyourgadget.gadgetbridge.activities.InstallActivity;
+import nodomain.freeyourgadget.gadgetbridge.devices.DeviceCoordinator;
 import nodomain.freeyourgadget.gadgetbridge.devices.InstallHandler;
+import nodomain.freeyourgadget.gadgetbridge.devices.huami.Huami2021Coordinator;
 import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice;
 import nodomain.freeyourgadget.gadgetbridge.model.GenericItem;
 import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.zeppos.operations.ZeppOsGpxRouteFile;
+import nodomain.freeyourgadget.gadgetbridge.util.DeviceHelper;
 import nodomain.freeyourgadget.gadgetbridge.util.FileUtils;
 import nodomain.freeyourgadget.gadgetbridge.util.UriHelper;
 
@@ -75,6 +78,20 @@ public class ZeppOsGpxRouteInstallHandler implements InstallHandler {
             return;
         }
 
+        final DeviceCoordinator coordinator = DeviceHelper.getInstance().getCoordinator(device);
+        if (!(coordinator instanceof Huami2021Coordinator)) {
+            LOG.warn("Coordinator is not a Huami2021Coordinator: {}", coordinator.getClass());
+            installActivity.setInfoText(mContext.getString(R.string.fwapp_install_device_not_supported));
+            installActivity.setInstallEnabled(false);
+            return;
+        }
+        final Huami2021Coordinator huami2021coordinator = (Huami2021Coordinator) coordinator;
+        if (!huami2021coordinator.supportsGpxUploads()) {
+            installActivity.setInfoText(mContext.getString(R.string.fwapp_install_device_not_supported));
+            installActivity.setInstallEnabled(false);
+            return;
+        }
+
         if (!device.isInitialized()) {
             installActivity.setInfoText(mContext.getString(R.string.fwapp_install_device_not_ready));
             installActivity.setInstallEnabled(false);
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/miband/AbstractMiBandFWInstallHandler.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/miband/AbstractMiBandFWInstallHandler.java
index 976210b70..ebe949d34 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/miband/AbstractMiBandFWInstallHandler.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/miband/AbstractMiBandFWInstallHandler.java
@@ -77,7 +77,11 @@ public abstract class AbstractMiBandFWInstallHandler implements InstallHandler {
             return;
         }
 
-        if (!isSupportedDeviceType(device) || !device.isInitialized()) {
+        if (!isSupportedDeviceType(device)) {
+            installActivity.setInfoText(mContext.getString(R.string.fwapp_install_device_not_supported));
+            installActivity.setInstallEnabled(false);
+            return;
+        } else if (!device.isInitialized()) {
             installActivity.setInfoText(mContext.getString(R.string.fwapp_install_device_not_ready));
             installActivity.setInstallEnabled(false);
             return;
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index bc789338c..85721a180 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -785,6 +785,7 @@
     <string name="devicestatus_upload_failed">Upload has failed</string>
     <string name="firmware_update_progress">Upload is in progress\n%1d%% at %.2fkbps (average %.2fkbps)\nPart %1d of %1d</string>
     <string name="updating_firmware">Flashing firmware…</string>
+    <string name="fwapp_install_device_not_supported">File cannot be installed, device not supported.</string>
     <string name="fwapp_install_device_not_ready">File cannot be installed, device not ready.</string>
     <string name="installhandler_firmware_name">%1$s: %2$s %3$s</string>
     <string name="miband_fwinstaller_compatible_version">Compatible version</string>