Samsung Galaxy S20+ is not recognized

[den3y]

Hi there,

I tried to connect my Samsung Galaxy S20+ running on Android 12 to my MacBook Pro running macOS 12.6 using openmtp-3.2.0-alpha.5-mac-x64.dmg. Unfortunately the smartphone is not recognized, the right side of openMTP is showing me the FAQs on how to connect. I tried using the Kalam mode as well as the legacy mode.

Any help is appreciated.

Best regards,
Dennis

[ganeshrvel]

Could try these?

1. Reboot your Mac (IMPORTANT). Simply restarting the machine has helped many.
2. If you are on macOs Ventura, try quitting the Preview app. Read here: Samsung Galaxy S20+ is not recognized #270 (comment)
3. If you have any of these apps installed on your mac, quit them "completely" and relaunch OpenMTP
   • Google drive (GitHub Issue)
   • Dropbox (GitHub Issue)
   • Preview app on macOS Ventura (GitHub Issue)
   • SmartSwitch (GitHub Issue)
   • Garmin Express
   • OneDrive
4. Uninstall any Samsung watch related drivers from macOS. Read here: Samsung Galaxy S20+ is not recognized #270 (comment)
5. Some applications will lock on to the USB port once it detects a USB drive. See if any of the active apps require USB access which could be causing this issue.
6. Try disabling the Hotplug detection from the Settings in OpenMTP. Reconnect the phone and tap on the Refresh button on OpenMTP
7. Make sure that you have enabled file transfer and accepted "Enable mtp data access" on your Samsung phone
8. For some users installing Samsung Switch helped (GitHub Issue).

[den3y]

Hi @ganeshrvel,

finally I made it work. The problem were five drivers that were installed by Samsungs SmartSwitch that were active in the background and thus caused OpenMTP to not be able to work properly. In my case SmartSwitch was uninstalled but the drivers were still active.

To uninstall the drivers SmartSwitch needs to be installed (in re-installed it as I removed the app but the drivers were still present on my Mac). Then open "Applications" in Finder, search for the SmartSwitch folder. Navigate into the folder, execute the uninstall-script that is located there and make sure the checkbox for deleting the drivers is selected. You may be prompted your administrators password for each uninstallation of a driver as it is a system enhancement. When I completed this process, my Samsung Galaxy S20+ was recognized by OpenMTP and everything worked flawlessly.

Thanks for all your work, I really appreciate it!

Best regards,
Dennis

[adrianbj]

I have an S20 and keep getting the "My Phone is Not Connecting" error. I've properly uninstalled SmartSwitch (and it's drivers) and everything has been rebooted multiple times and the USB settings are set for Transferring Files / Android Auto. I don't have the "Transferring media files" option shown in the FAQ.

I can't think of anything else. Anyone?

PS, I am running Ventura in case maybe that's not supported yet?

PS - I don't have google drive or dropbox installed, but I do have Garmin Express which syncs to my watch - I wonder if that might be an issue with setting transfer mode?

[ganeshrvel]

Please uninstall any sync app and it's helpers before using openmtp. Restart the os, reconnect and tap on refresh. I use Ventura, it works fine. Restart.

[bren-m]

This worked for me straight away:

https://support.google.com/android/thread/187133401?hl=en&msgid=187524996

Quit Preview before opening OpenMTP

[adrianbj]

Thanks @bren-m - quitting Preview worked for me (no need to restart my machine).

Not sure why Apple is making this so hard :)

[bvenceslas]

Thanks @bren-m
I also closed Preview App and it worked fine.

Really Thankful to you

[Totagara]

Hi @ganeshrvel,

finally I made it work. The problem were five drivers that were installed by Samsungs SmartSwitch that were active in the background and thus caused OpenMTP to not be able to work properly. In my case SmartSwitch was uninstalled but the drivers were still active.

To uninstall the drivers SmartSwitch needs to be installed (in re-installed it as I removed the app but the drivers were still present on my Mac). Then open "Applications" in Finder, search for the SmartSwitch folder. Navigate into the folder, execute the uninstall-script that is located there and make sure the checkbox for deleting the drivers is selected. You may be prompted your administrators password for each uninstallation of a driver as it is a system enhancement. When I completed this process, my Samsung Galaxy S20+ was recognized by OpenMTP and everything worked flawlessly.

Thanks for all your work, I really appreciate it!

Best regards, Dennis

I was facing same issue on S22 Ultra, and the above trick helped me fix the issue. Thanks Dennis!

[ghost]

@ganeshrvel I have a Galaxy S22 Ultra and am running Ventura 13.4.1 and am not able to connect despite trying all of the debugging steps above. What am I missing?

[bvenceslas]

@ganeshrvel I have a Galaxy S22 Ultra and am running Ventura 13.4.1 and am not able to connect despite trying all of the debugging steps above. What am I missing?

If you have Preview app, try to quit it completely. Because once it's on, it takes up the storage management and cannot permit your MAC to open/mount the phone storage.
Try that, because it has also helped many

[ganeshrvel]

See if these steps help: #276 ?

And oh yes, the Preview app has been a headache.

[rohanc]

Please add the MightyText desktop app to the list of programs that prevent OpenMTP from accessing phone files. I tried with OpenMTP v3.2.10 and MightyText desktop 5.5.0.

https://mightytext.net/desktop-app

[robindekoster]

The native Photos app also interferes with the reading of devices.

[ghost]

@ganeshrvel I have a Galaxy S22 Ultra and am running Ventura 13.4.1 and am not able to connect despite trying all of the debugging steps above. What am I missing?

If you have Preview app, try to quit it completely. Because once it's on, it takes up the storage management and cannot permit your MAC to open/mount the phone storage. Try that, because it has also helped many

still no luck.

[jimrome]

I have Samsung Smart Switch installed, but cannot uninstall it because it says I have devices attached. I don't think I do. How would I find them?

[jimrome]

I have Samsung Smart Switch installed, but cannot uninstall it because it says I have devices attached. I don't think I do. How would I find them?

[jimrome]

It was an external samsung SSD drive. But removing the drivers did not allow my Pixel8 Pro to be recognized on Sonoma 14.1

[jimrome]

DropBox caused the problem. When I stop it, the Pixel8 Connects.

[Anaheim999]

I'd like to add on to what finally worked on my Galaxy S22. I had a Google Drive account open in the My Files Storage. Signing out all cloud based storage accounts and clicking refresh on Open MTP instantly opened my android folders.

[pombzilla]

I'd like to add on to what finally worked on my Galaxy S22. I had a Google Drive account open in the My Files Storage. Signing out all cloud based storage accounts and clicking refresh on Open MTP instantly opened my android folders.

thanks man, same here! it worked flawlessly after closing gdrive!

[virtuallatinos]

I have a Galaxy S20, on a Macbook Pro running MacOs Sonomoa Version 14.3. Just installed the OpenMTP, and didn't connect after following all directions. Then, I a) did quit Dropbox on my Mac, b) Uninstalled SmartSwitch from my phone, restarted the phone, and tried it again and it worked :-)

[anthonyjdella]

I've tried all of the suggestions in these threads and none has worked. Samsung Galaxy 20