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rated 0 times [  21] [ 0]  / answers: 1 / hits: 190553  / 3 Years ago, wed, may 12, 2021, 11:31:12

I'm puzzled because my phone used to just appear when I plugged it in. It doesn't anymore and The development options are definitely set to allow USB debugging. The phone is charging via USB but doesn't appear in lsusb



[0 amanda@luna android-sdk-linux_86]$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 004: ID 17ef:4807 Lenovo UVC Camera
Bus 003 Device 012: ID 413c:1003 Dell Computer Corp. Keyboard Hub
Bus 003 Device 003: ID 08ff:2810 AuthenTec, Inc. AES2810
Bus 003 Device 013: ID 413c:2010 Dell Computer Corp. Keyboard
Bus 003 Device 014: ID 046d:c001 Logitech, Inc. N48/M-BB48 [FirstMouse Plus]


adb devices -l shows nothing.



In my Wireless and Network settings I changed the USB connection settings to "Mass storage" -- they were set to "Ask on connection" though I definitely wasn't getting asked. I don't get any Click here to connect via USB alert either.



I'm not even sure whether the issue is my phone or my computer. It seems odd that it isn't even appearing in lsusb



Not for nothing, the thumb drive on my keyring also does not appear in lsusb -- I've tried both in a bunch of different ports. I kind of assume the thumb drive is just borked, but it could be my OS.


More From » usb

 Answers
5

If this were me I would try:




  • Restarting the phone. Sometimes a power cycle is all it takes.


  • A different cable. They're surprisingly fragile things with no internal redundancy. Mass production has done nothing to enhance their longevity. Most people have about a thousand of these cluttering up their houses so it should be a simple swap.


  • A different port. They can break and internal connectors can fall out.


  • A different computer (assuming one is conveniently close by). I once had a problem with a USB chipset that refused to talk to a SGS2 in download mode. Everything else was fine but the SGS2 would just make the USB subsystem hang. Tried it in a laptop and it just worked.



[#31125] Friday, May 14, 2021, 3 Years  [reply] [flag answer]
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