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How to get Galaxy Watch working with a rooted Galaxy Tab S4 (Android 9.0)

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    Hi fellas :)

    I got it finally to work, after updating to Android Pie :) :) :)
    Time to share how I did it and be aware, I did not test this again in different ways, so there are some uncertainties, I will incorporate them into the places where they belong, so I recommend to first read this guide before doing it, so you are aware of what it requires, what the "risks" are and what restrictions I found so far.

    Risks:
    • No guarantee it works for your devices. I already know from my own testing, it does not work on Android 8.X.
    • No guarantee this won't damage your phone or something, but that said, I am using this since over 1 year now, no adverse effect or anything :)
    • Untested if updating of the watch or Tab S4 breaks this - but in my case, I was on the newest version of Android, Tizen, and the needed apps already. That said, sofar updating the watch is not breaking this, after 1 year and several updates.
    • This is faking the phone's identity to a Galaxy Note 9, this leads to some side effects, ie. in my case the navigations button are stuck on the bottom, pin keypad is only usable horizontally, etc. BUT this is only for the procedure, you can revert after pairing, etc. and it worked ever since for me, even updating the watch software was no problem whatsoever - updating the watch software (the apps on it) you need to do temporary this trick again

    Specs of my devices:
    Samsung Galaxy Tab S4 LTE (SM-T835)

    Samsung Galaxy Watch LTE 46 mm (SM-R805F)
    • Tizen 4.0.0.1 (R805FXXU1DSB2/R805FOXA1DSB2/R805FXXU1DSB2 - according to Galaxy Wearable)
    • IIRC with this new guide you can activate the eSIM normally, in case it does not work:
    • Activate the eSIM with a known compatible device [but it must have the physical sim card your eSIM is connected to, insert before pairing up ofc.], ie. Galaxy S9, Galaxy S20, Galaxy Note 9 and then connect it with the guide below

    Things you need to get this working:
    • Root (see above)
    • [Probably] Magisk Module so that Bluetooth connection is not forgotten: "libsecure_storage companion for rooted Samsung devices" (by ianmacd)
    • Build Prop Editor app (I used this one), hence the root :(
    • Galaxy Wearable app (tested on version 2.2.24.19031361) - If you download it at the beginning you can find it on the Play Store, otherwise you can find it on apkmirror as well
    • A file explorer with root capabilities

    How to install:
    1. At this point I strongly recommend installing ianmacds "libsecure_storage companion for rooted Samsung devices" in the Magisk Manager app! Otherwise, the tablet will forget the Bluetooth connections! Do not restart as we need to do this in a few moments anyways
    2. Install the Galaxy Wearable app from the Play Store
    3. Open your Build Prop Editor
    4. Change the following stuff to fake your Tab S4 identity (mine is SM-T835, yours might be different) to a Galaxy Note 9 (in this case this specific model SM-N960F) - in the app I suggested you can do that by clicking on the pen top right:
      • ro.product.model=SM-T835 to ro.product.model=SM-N960F (Note: I could very well imagine this works with another model than the Note 9, as well, I haven't tested it though)
      • ro.build.characteristics=tablet to ro.build.characteristics=phone
      • ro.config.tima=1 to ro.config.tima=0 (this is to get Samsung Health app to work, I know this app is refusing to work on rooted phones, maybe other Samsung apps are also affected?)
    5. Save the changes (in the app I suggested there is a save symbol top right) and restart the tablet (to apply)
    6. Yes some of the UI is a bit weird, do not worry, we will revert to the correct identity at the end and everything should be back to normal
    7. Launch the Galaxy Wearable app
    8. Close the app again
    9. Open root file explorer (give it root rights if you have not already done so)
    10. Go to "data/data/com.samsung.android.app.watchmanager/files" and there open rules.xml
    11. Edit the following lines:
      • Somewhere you will see: <group name="Gear S4" wearable tye [etc]
      • Below that line are 3 nearly identical line, all like that: <item supportNonSamsung="false" supportTablet="false" pairingImageName[etc]
      • In any case, all 6 of them (in 1 line there are 2, as there are 3 lines, that makes 6) should be "true"! If that is not the case, change them accordingly
      • !!! This might have to be redone if the Galaxy Wearable app is updated !!!
    12. Start the Galaxy Wearable app again
    13. Press "Connect to new phone" on your Galaxy Watch (or if it is brand new, then you should be also in the screen it asks to pair up with a new device) - beware: This "resets" your Galaxy Watch (except eSim info), so I suggest to back it up beforehand if you can
    14. In the main menu of the Galaxy Wearable app, you should now see the Galaxy Watch, then click on it
    15. Now it should pair up without any problems and set up properly (at least for me it did work all 4 times :p)
    16. As said, if the mobile network setup fails, you need to setup the eSim beforehand with a known compatible device, as written somewhere above
    17. You can restore a backup from here if you chose to, though you still have to setup some of the stuff again - I tried it without and it still worked without problems
    18. If you have an eSim, check your watch if you have a mobile data connection (go to settings > mobile network > put it on ALWAYS ON just for that test)
    19. Afterwards if you want to use it as a standalone outside your Bluetooth tablet range, I suggest AUTO or ALWAYS ON (beware ALWAYS ON eats a lot of battery, your watch might hold only 12h+ hours) and set in the Galaxy Wearable under "Account and backup", "Remote Connection" to on (which requires the tablet to have a data connection of its own)
    20. Now I suggest to install & update all the necessary apps, see the guide below!

    How to update watch apps or install watch apps:
    1. Open your Build Prop Editor [you can skip these first 3 points if you are coming from first install part from above]
    2. Change the following stuff to fake your Tab S4 (mine is SM-T835, yours might be different) identity to a Galaxy Note 9 (in this case this specific model SM-N960F) - in the app, I suggested you can do that by clicking on the pen top right:
      • ro.product.model=SM-T835 to ro.product.model=SM-N960F (Note: I could very well imagine this works with another model than the Note 9, as well, I haven't tested it though)
      • ro.build.characteristics=tablet to ro.build.characteristics=phone (this is essential, otherwise, we would need to change some XML file as well)
    3. Save and restart the device
    4. [Resume here if you are coming from the install part above] Open Galaxy Wearable
    5. Open Galaxy Store
    6. Open the 3 lines on the top left, go to Updates and then use the Watch tab
    7. After you have done all the watch app updates & installs
    8. Open your Build Prop Editor
      • ro.product.model=SM-T835 [SM-T835 is my tablet, yours might be different]
      • ro.build.characteristics=phone
    9. Save and restart and all should be working as before
    10. Enjoy your fully functional Galaxy Watch with your Galaxy Tab S4!

    In case you are FORCED to do an update to the Galaxy Wearable app (it is not recommended to auto-update):
    • Update like any other app
    • If everything still works, you don't have to do the following points:
    • If suddenly it says your device is not compatible or something:
    1. Open root file explorer (give it root rights if you have not already done so)
    2. Go to "data/data/com.samsung.android.app.watchmanager/files" and there open rules.xml
    3. Edit the following lines:
      • Somewhere you will see: <group name="Gear S4" wearable tye [etc]
      • Below that line are 3 nearly identical line, all like that: <item supportNonSamsung="false" supportTablet="false" pairingImageName[etc]
      • In any case, all 6 of them (in 1 line there are 2, as there are 3 lines, that makes 6) should be "true"! If that is not the case, change them accordingly
    4. Save
    5. Start the Galaxy Wearable app again and it should work again

    Tested features that work:
    • Restarting the tablet (on my very first try this triggered some kind of in-app update, but it just repaired and it still works as usual), never had that again later (I repaired/reset the watch several times for testing)
    • Backup & Restore incl.
    • Connecting to a Samsung Account (never tested without though, but I see no reason it shouldn't work)
    • Remote connection (both LTE and Wifi) incl.
    • Notifications (specifically tested with Gmail and SMS) (both remote and over Bluetooth) and
    • Calling something (both remote and over Bluetooth)
    • Automatic Bluetooth reconnect
    • Widget/App installation & uninstallation (tested with Spotify remote control)
    • Adding a music track to the watch via Galaxy Wearable and play it
    • Samsung Health (partially tested, specifically heart rate works)
    • Calling from the watch, receiving calls to the watch, as standalone or in Tablet range (all 4 are working) (I recommend a Bluetooth headset)

    Things that don't work:
    • Updating / Installing Galaxy Watch apps without doing the guide above
    • [Sometimes] rules.xml needs to be rechecked after a Galaxy Wearable app [see guide above]

    Have fuuuuuuuuuuuun
    1
    Still looking?? Which rom have you installed?

    Στάλθηκε από το SM-N935F μου χρησιμοποιώντας Tapatalk

    I gave it up for the time being. Got back to [TeamExyKings][G930/G935_F/FD][8.0][S9 Port][06-May-2019][v22]LightROM...
    1
    1. I updated the guide with 1 more strongly recommended install, a Magisk module by ianmacd, allowing the rooted Tab S4 to remember Bluetooth connections. It is called: "libsecure_storage companion for rooted Samsung devices"
    2. The newest versions of the Samsung Galaxy Wearable app might require an additional modification, which I also implemented in the original post. You have to do it only if it suddenly says that your device is not compatible anymore.

    1. Close the Galaxy Wearable app
    2. Open root file explorer (give it root rights if you have not already done so)
    3. Go to "data/data/com.samsung.android.app.watchmanager/files" and there open rules.xml
    4. Edit the following lines:
      • Somewhere you will see: <group name="Gear S4" wearable tye [etc]
      • Below that line are 3 nearly identical line, all like that: <item supportNonSamsung="false" supportTablet="false" pairingImageName[etc]
      • In any case, all 6 of them (in 1 line there are 2, as there are 3 lines, that makes 6) should be "true"! If that is not the case, change them accordingly
    5. Save
    6. Start the Galaxy Wearable app again and it should be working again
    1
    After editing rules.xml Samsung wear resets and no devices are shown.

    Please help
    Are you using icanmads Magisk Module "libsecure_storage companion for rooted Samsung devices"?
    Did you follow the guide?
    I assume you did edited rules.xml doing this:
    • Somewhere you will see: <group name="Gear S4" wearable tye [etc]
    • Below that line are 3 nearly identical line, all like that: <item supportNonSamsung="false" supportTablet="false" pairingImageName[etc]
    • In any case, all 6 of them (in 1 line there are 2, as there are 3 lines, that makes 6) should be "true"! If that is not the case, change them accordingly


    Hi, I have a galaxy Tab A (2017 model) and recently bought a Galaxy Watch D346. My tablet shows the watch in bluetooth available devices but can't connect and the samsung wearable app also cant find the watch. Can you please help me with this?
    Did you root your device?
    If yes, are you using icanmads Magisk Module "libsecure_storage companion for rooted Samsung devices"?
    Did you follow the guide?