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Galaxy S9 Fails to Connect to Computer via USB

Galaxy S9 Fails to Connect to Computer via USB

September 19, 2018 by Mitch Bartlett 12 Comments

So, your Samsung Galaxy S9 won’t connect to your PC via a cabled USB connection? There are a few common issues people run into when trying to get their S9 to show up as an MTP device on their computer. Here are a few solutions you can try.


1. Check Cable

  • Try a different cable if you can. Even some of the cables included with the device can be defective.

2. Try a Different Port

  • Try connecting the USB cable to a different port on your computer.

3. Install Software

  • If you’re using Windows, ensure that you have downloaded and installed the correct drivers properly. Search Samsung’s Support site for your device and make sure you are installing the right drivers for your particular version of the Galaxy phone.
  • Mac users will want to try downloading and installing Android File Transfer to get their device going.

4. Try Reinstalling

Windows users who have just installed the software drivers for the Samsung Galaxy S9 may need to uninstall the device in Windows before it is detected. You can do that with the following steps.

  1. Hold the Windows Key and press “R” to bring up the Run dialog box.
  2. Type “devmgmt.msc“, then press “Enter“.
  3. Expand the “Other devices” section and “Portable Devices” sections.
  4. If there is a “SAMSUNG_Android” or “Unknown Device” listed with a (!) yellow logo, right-click it then select “Uninstall“.
  5. Right-click anywhere on the Device Manager window and select “Scan for hardware changes“. Hopefully the device is detected.

Do you have other problems besides drivers or cables causing your issue? Please share your experience in the comments section.

 

This tutorial applies to the Samsung Galaxy S9 and S9+ models G960U and G965U.

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Filed Under: Android

Reader Interactions

Comments

  1. Martijn says

    October 23, 2021 at 11:53 am

    Thanks for this post, however, phone remains unrecognized. never had this issue before.
    I tried a blue tooth connection but get the same issue, device gets connected but for file sharing to no avail.
    really annoying samsung, even unworkable!

  2. Carla A Howell says

    June 16, 2021 at 3:38 pm

    My phone (S9) used to work fine when I plugged a USB cord from it to my PC. In File Explorer, it shows up as a device. But now when I plug it in, it charges, but File Explorer won’t recognize it anymore. I tried 3 different cables and 3 different ports (one of which I tested and it works with my thumb drive). Nothing works.

  3. Nash says

    October 4, 2020 at 4:11 pm

    My Samsung S9+ wont show storage on my pc…all it does is charge l tried changing it from charge when usb connected to mtp storage files but didn’t work…also if l put it in download mode trying to use Odin it doesn’t show

  4. Lin says

    August 26, 2020 at 5:35 pm

    I’ve tried it all and it’s still doing the same thing. Connecting and disconnecting every second.

  5. Wen says

    December 28, 2019 at 5:47 pm

    it should mention that option-0 is to check your phone.
    It has a pop-up message to ask for permission to access phone. Just select “Allow”, then phone device becomes visiable

  6. stanley says

    December 20, 2019 at 10:24 am

    I got it to connect after using a USB-C port instead of USB. I think the issue is that a USB port can’t provide enough power.

  7. Benjamin says

    November 16, 2019 at 5:46 pm

    Plugging into a different port did the trick for me, Thanks! :-)

  8. Elizabeth A. Jodry says

    August 28, 2019 at 7:21 pm

    When I plugged my phone in, I got a popup indicating the software was installed successfully. But when I checked the Program List, it wasn’t there, I followed the instructions above to locate my Verizon Galaxy S9 drivers and was confused. There were no “drivers” listed. Only software, manuals, quickstart guide and legal. No “Drivers.” I hoped that “Software” was the right thing and the download list confirmed it. Please update your instructions. BUT, the process still did not work. Then I looked at my phone, which was dark and had not lit up. I awakened the screen and saw that there was a box asking me to “allow” or “deny” access. Once I hit “Allow,” all worked.

  9. Samso says

    July 11, 2019 at 8:01 am

    I already did all that. Sitill doesn´t show up.

  10. Greg says

    January 17, 2019 at 5:52 pm

    Same as Jude….

  11. ihza says

    December 31, 2018 at 8:17 am

    my S9+ wont show up as phone but a removable disk instead

  12. Jude says

    December 19, 2018 at 8:47 am

    My device manager identifies it as an “MTP USB Device” and it doesn’t show up in the file explorer even after following all instructions

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Baby and Daddy My name is Mitch Bartlett. I've been working in technology for over 20 years in a wide range of tech jobs from Tech Support to Software Testing. I started this site as a technical guide for myself and it has grown into what I hope is a useful reference for all.

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