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Hi guys I usually work with large files on an external HDD (1 Tb Toshiba) but after rebooting the laptop for an update I can't see it anymore.

I am working with Ubuntu 18.04.4 LTS.

When I do dmesg | tail I get the following:

[ 2605.778978] usb usb1-port1: attempt power cycle
[ 2606.430884] usb 1-1: new full-speed USB device number 32 using xhci_hcd
[ 2606.431085] usb 1-1: Device not responding to setup address.
[ 2606.638937] usb 1-1: Device not responding to setup address.
[ 2606.846862] usb 1-1: device not accepting address 32, error -71
[ 2606.974698] usb 1-1: new full-speed USB device number 33 using xhci_hcd
[ 2606.974806] usb 1-1: Device not responding to setup address.
[ 2607.182967] usb 1-1: Device not responding to setup address.
[ 2607.390882] usb 1-1: device not accepting address 33, error -71
[ 2607.391006] usb usb1-port1: unable to enumerate USB device

I cannot manually mount it using fdisk -l (no additional sd* after I plug it in)

I tried on a mac laptop and also there I plug the disk and it doesn't recognize it. I have white lights blinking on the device and instead of getting a steady blue light it turns off and I can hear it stops rotating.

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  • open up applications, search for disks. see if you can detect your drive, scan and repair – Giorgos Saridakis Jun 24 '20 at 16:23
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    Does the external disk enclosure have its own external AC power supply? Do you have access to a desktop computer? – heynnema Jun 24 '20 at 16:48
  • You are troubleshooting faulty hardware now, which is not an Ubuntu-specific problem. If you manage to get it to work again, back up your data immediately to more reliable hardware, because it might not work for long. – user535733 Jun 24 '20 at 17:06

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