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r/techsupport • … • u/magicalMusical

"Device Descriptor Request Failed" when I plug my android phone into my PC, but USB accessories on the phone work fine.

Just a few minutes ago, ADB on my phone was working perfectly fine. Now, plugging my phone in takes like 5 seconds before I hear a USB connected noise, and ADB does not detect any devices. In device manager, an *Unknown USB Device (Device Descriptor Request Failed)* shows up when I plug my phone in and disappears when I unplug it.

I've tested two different cables on two different ports on my PC. I've tested using my USB-C headphone adapter on my phone and it works perfectly fine.

**When I plug my phone into my PC, my phone recognizes it is connected to a host device.** USB Debugging enables and the device gives me a prompt to select what to do with the USB. Selecting 'File Transfer' instead of 'None' changes nothing, USB still does not work.

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