diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/pebble/PebbleIoThread.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/pebble/PebbleIoThread.java
index d513c5de..1d229fa0 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/pebble/PebbleIoThread.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/pebble/PebbleIoThread.java
@@ -178,6 +178,8 @@ public class PebbleIoThread extends GBDeviceIoThread {
                             if (mPBWReader.isFirmware()) {
                                 writeInstallApp(mPebbleProtocol.encodeInstallFirmwareComplete());
                                 finishInstall(false);
+                            } else if (mPebbleProtocol.isFw3x) {
+                                finishInstall(false); // FIXME: dont know yet how to detect success
                             } else {
                                 writeInstallApp(mPebbleProtocol.encodeAppRefresh(mInstallSlot));
                             }