1. Ungaby's Avatar
    On my galaxy s10 + , I connect an external sd reader (via the USB C port) and nothing happens. The light on the reader doesn't go on.
    I have tested the reader on a S9 and it works.
    The usb port works for charging my phone or to transfer data with SMARTSWITCH.
    Help please.
    10-22-2021 06:54 PM
  2. mustang7757's Avatar
    Hi, welcome to AC!

    Even though light doesn't come on does it show up in My files app?
    10-22-2021 09:17 PM
  3. B. Diddy's Avatar
    Welcome to Android Central! Does the SD reader specifically have OTG built into the connector, or are you using an OTG adapter?
    10-23-2021 12:05 AM
  4. Ungaby's Avatar
    No it doesn't show up in my files app. And I dont use an OTG adapter; this card reader works perfectly on other phones like the S9.
    10-23-2021 12:31 PM
  5. B. Diddy's Avatar
    Is USB Debugging turned on in the Developer Options? https://seektogeek.com/why-samsung-s...ize-usb-drive/
    10-23-2021 12:39 PM
  6. Ungaby's Avatar
    Yes, debugging mode is on but nothing happens...
    10-23-2021 04:49 PM
  7. Ungaby's Avatar
    Do you think a hard reset on my phone could resolve the problem?
    10-23-2021 04:52 PM
  8. mustang7757's Avatar
    Do you think a hard reset on my phone could resolve the problem?
    Try it see what happens
    10-23-2021 06:35 PM

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