[Hackrf-dev] Hackrf One not detected and no usb led

[Martin Smith]

If I was you I would contact where you bought it for RMA details.

But I am curious what RTL-SDR uses a MicroUSB cable ? I would have
expected a kindle or mobile phone or something else.

On 03/05/2016 09:38, alex.dcaw at gmx.de wrote:
> Hi Martin,
>
> I didn't try another USB cable, but I used the USB cable from the HackRF One for another USB device (RTLSDR stick) and it worked fine!
> The DFU button probably is NOT broken, because pressing the button changes the LEDs.
>
> Thanks,
>
> Alex.
>
>> Gesendet: Montag, 02. Mai 2016 um 17:07 Uhr
>> Von: "Martin Smith" <martin_z_smith at yahoo.ie>
>> An: "Aex Weiß" <alex.dcaw at gmx.de>
>> Cc: hackrf-dev at greatscottgadgets.com
>> Betreff: Re: [Hackrf-dev] Hackrf One not detected and no usb led
>>
>> That suggests one of three things to me. The CPU is dead, your DFU
>> button is broken or your USB connection is bad. Have you tried a
>> different USB cable ?
>>
>> On 02/05/2016 10:11, "Aex Weiß" wrote:
>>> Hi Martin,
>>>
>>> thank you for the reply!
>>> Yes, I'm actually using DFU mode.
>>> My Workflow is:
>>>
>>> 1) No USB Device is connected. Now I start "lsusb" for the first time.
>>>
>>> 2) Now I take the HackRF one, hold down the DFU button and plug it into a USB port. I release the DFU button.
>>> Now I wait for approx. 30 seconds and then I run "lsusb" again. The list of entries is identical to the list of the first run, where no external USB device was connected.
>>>
>>> 3) I did another test using a RTLSDR USB with the USB cable of the HackRF and everything ("lsbsub" and the fm reveiver example of gnu radio) worked fine.
>>>
>>> thanks,
>>>
>>> Alex.
>>>     
>>>
>>>> Are you actually entering DFU mode ?
>>>> Hold down the HackRF's DFU button (the button closest to the antenna
>>>> jack) and plug the HackRF into a USB port on your computer. After the
>>>> HackRF is plugged in, you may release the DFU button.
>>>>
>>>> DFU mode is stored in a ROM within the CPU, created by NXP the
>>>> manufacturer, of the LPC4320. DFU mode not working, would be unusual.
>>>>
>>>> In DFU mode you should see a green LED (and a dimly lit red and orange
>>>> LED) and running "lsusb" on the Linux command line should show a device
>>>> "ID 1fc9:000c NXP Semiconductors" connected to some USB port.
>>>>
>>>> On 30/04/2016 08:16, alex.dcaw at gmx.de wrote:
>>>>> Using DFU mode doesn't change the output of dmesg or lsusb.
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>>>>
>>