Fix: Galaxy Watch 4 this watch isn’t supported on this phone

Samsung Galaxy Watch 4 is the latest flagship smartwatch from Samsung that has been launched recently in the market. Smartwatch lovers and Samsung fans were pretty much excited about it. Now, after releasing this smartwatch, most of the users are reporting that they’re getting Galaxy Watch 4 ‘this watch isn’t supported on this phone’ error notice while trying to connect with a non-Samsung device or even to Windows PCs.

So, if you’re also facing the same issue then make sure to follow this article properly. According to multiple reports on the WearOS subreddit forum, even after contacting the Samsung support team, they said that it should work on other branded devices like Huawei. But that didn’t help at all. While taking a deep look at the Samsung Wearable app’s source code, it seems that Huawei vendor hardware isn’t supported.

Fix: Galaxy Watch 4 this watch isn’t supported on this phone

First of all, you can follow some of the possible workarounds below. If these don’t work for you then you can try following some other tweaks.

1. Update Galaxy Wearable App

Head over to the Google Play Store app on your handset and search for the Galaxy Wearable app. Then check whether there is an update available or not for this app. If available, simply install the update and re-open the Galaxy Wearable app to check for the issue.

2. Reset The Watch

• First of all, back up data on the internal memory.
• Turn off the Galaxy Watch 4.
• Press and hold the Power key until REBOOTING appears at the bottom of the screen.
• Next, press the Power key three times quickly until the Select REBOOT MODE screen appears.
• Then press the Power key multiple times to highlight ‘Recovery’.
• Press and hold the Home key for three seconds at least to select it and wait until the Galaxy Watch 4 starts rebooting.

3. Update your phone to the latest version

No matter which device model from which brand you’re using, make sure to check updates for the phone’s firmware from Settings > Software Update. If there is an update available, you should download and install the update completely. A new software update can fix multiple bugs, connectivity issues, stability issues, and offers new features too.

4. Running Custom ROM or Rooted?

Well, if in case, you’re not using stock firmware on your handset or your device is rooted then the chances are high that the Samsung Galaxy Watch 4 may not connect or work properly with your phone via the Samsung Wearable app. However, for further assistance, you can contact Samsung support.

5. Alternative Solutions

Coming to another issue, if you’re using any of the Huawei devices and the Galaxy Watch 4 says this watch isn’t supported on this phone then check out other alternative solutions below.

Luckily, u/Relative_Comparison2 and u/XDA-Dante63 have shared a couple of possible tweaks that Huawei device users can perform in order to work the Samsung Wearable app with Galaxy Watch 4. So, without wasting any more time, let’s jump into it.

Method 1:

There is a trick that Huawei device users should try first. If method 1 doesn’t work for you then you can head over to method 2.

• Download the Samsung Health application on your Huawei device.
• Turn on Galaxy Watch 4 and Bluetooth too.
• Then select the Galaxy Watch 4 via Menu > Accessories > Search Accessories on the Health app.
• After the normal setup process, make sure to install the Samsung Wearable app and Watch 4 plugin.
• Make sure not to switch off the watch. Otherwise, you can’t connect to the smartphone and the watch will be stuck in the bootloop.
• Finally, perform a reset of the watch to work it properly on the Samsung Wearable app.

Method 2:

• Use ‘apktool d’ to disassemble the Galaxy Wearable apk file first.
• In the AndroidManifest.xml, you’ll have to remove ‘android:sharedUserId=”com.samsung.accessory.wmanager”‘.
• This actually prevents users from installing the Wearable and Watch4 plugin with different signatures.
• Next, remove the ‘android:writePermission=”com.samsung.android.hostmanager.permission.WRITE_APP_REGISTRY”‘ code for the ‘BaseContentProvider’ so apps with a different signature can access it easily.
• Then in the ‘src/com/samsung/android/app/twatchmanager/util/HostManagerUtils.smali’ section, search for ‘const-string v3, “HUAWEI”‘ and change it to something else.
• In ‘src/com/samsung/android/app/twatchmanager/log/MLogger.smali’, change the constructor to the following:

.method static constructor <clinit>()V
.locals 2
return-void
.end method

• Once done, recompile the APK using ‘apktool b’.
• Then make sure to sign (signature) using ‘apksigner’.
• Finally, you’re ready to install the modified Samsung Wearable APK on your Huawei device.
• As usual, turn on Bluetooth on both phone and Galaxy Watch 4 then pair them to check for the issue again.
• Enjoy!

If in case, you don’t want to fall into all of these modifications then visit this XDA Developers link to download the modified APK file and install it.

That’s it, guys. We assume this guide was helpful to you. For further queries, you can comment below.