[Hackrf-dev] HackRF not working - help

[Dominic Spill]

On 4 April 2016 at 12:55, Don Gray <dgray00 at hotmail.com> wrote:
>
> I had tried this before but must have missed the step of pressing the reset
> while holding down the DFU.
> Does this mean the next step is to reload the firmware?

Yes!  From DFU mode it's a two stage process:

1) DFU update
Instructions can be found here:
https://github.com/mossmann/hackrf/wiki/Updating-Firmware#only-if-necessary-recovering-the-spi-flash-firmware
You need to copy the .dfu file from the release to the HackRF using dfu-util

At this point you will hopefully have a working firmware running on
the HackRF.  You can check this by running hackrf_info, gqrx,
osmocom_fft, etc, but be careful, the firmware is only in RAM and a
reset will cause it to be lost.

2) SPI flash update
This is the non-volatile version of the firmware, instructions are
here: https://github.com/mossmann/hackrf/wiki/Updating-Firmware#only-if-necessary-recovering-the-spi-flash-firmware
After that you'll need to reset the HackRF, then you can test everything again.

Let me know how it goes.

Thanks,
  Dominic

>> From: dominicgs at gmail.com
>> Date: Mon, 4 Apr 2016 18:46:38 +0100
>> Subject: Re: [Hackrf-dev] HackRF not working - help
>> To: dgray00 at hotmail.com
>> CC: hackrf-dev at greatscottgadgets.com
>
>>
>> On 4 April 2016 at 13:43, Don Gray <dgray00 at hotmail.com> wrote:
>> >
>> > So, after some delay, I'm here!
>>
>> Welcome!
>>
>> >
>> > My symptoms: The 3V3 LED illuminates normally, all other LEDs are
>> > illuminated but very dim. If I push RESET, nothing happens. If I push
>> > DFU,
>> > the RF LED goes out and then if I push RESET the RF LED comes back on
>> > (still
>> > dim). It does not enumerate on the USB and lsusb doesn't list it.
>>
>> When you enter DFU mode, does the HackRF enumerate over USB? You can
>> check to output of dmesg and lsusb to find out. It should appear as
>> an NXP device in DFU mode.
>>
>> To enter DFU mode you should hold down the DFU button while pressing
>> the reset button.
>>
>> Thanks,
>> Dominic