I cannot access data on my tablet by USB, because when I plug it in, it keeps popping a dialog to allow access, when I pick allow, the dialog pops up again, and so on endlessly.

This is a Samsung Galaxy Tab A, my PC is on Ubuntu.

Update: After some more tests, I determined that if when I plug the tablet to the PC by USB, the tablet screen is turned on, it works fine. However if I plug the tablet with the screen off, the issue described above occurs.

  • Please add a screenshot
    – beeshyams
    Commented Jan 3, 2018 at 15:00
  • @beeshyams The dialog shows on the tablet, I cannot take a screenshot.
    – a06e
    Commented Jan 3, 2018 at 15:01
  • Maybe the cable keeps disconnecting, and therefore it's doing it. Try a different cable
    – aBochur
    Commented Jan 3, 2018 at 15:05
  • @Abochur I tried three different cables. All of them work fine on another device. Also, the tablet charges fine if I plug it (using the same cable) to a power outlet.
    – a06e
    Commented Jan 3, 2018 at 15:08
  • Could it be the USB port instead? This really does sound most likely to be caused by the cable repeatedly disconnecting and reconnecting, which is a common failure mode.
    – Dan Hulme
    Commented Jan 3, 2018 at 15:20

1 Answer 1


This is a workaround more than a fix, but it works for me on another Samsung device.

Install Samsung SideSync app from the Google play store on your device, then install Samsung SideSync app on your PC (http://www.samsung.com/sidesync).

After one more "allow access" popup, it won't ask again as the SideSync app will keep the allow access permission open.

  • how about Mac OS host? Commented Dec 8, 2022 at 14:07

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