# No DFU capable USB device available? **URL:** \ **Category:** Particle Workbench\ **Created:** [October 13, 2018, 8:48pm UTC](https://community.particle.io/t/no-dfu-capable-usb-device-available/44531 "2018-10-13T20:48:26Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![mprogers](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/mprogers/32/18458_2.png) [@mprogers](https://community.particle.io/u/mprogers)\ **Post date:** [October 13, 2018, 8:48pm UTC](https://community.particle.io/t/no-dfu-capable-usb-device-available/44531/1 "2018-10-13T20:48:26Z")
I don’t know if this is a Workbench-specific issue, but that’s where I’m seeing it: when I try to flash locally, I get Suffix successfully added to file Serial device PARTICLE\_SERIAL\_DEV : not available Flashing using dfu: dfu-util -d 0x2B04:0xD006 -a 0 -s 0x80A0000:leave -D /Users/me/…/Expendable/target/Expendable.dfu dfu-util 0.9 Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc. Copyright 2010-2016 Tormod Volden and Stefan Schmidt This program is Free Software and has ABSOLUTELY NO WARRANTY Please report bugs to [http://sourceforge.net/p/dfu-util/tickets/](http://sourceforge.net/p/dfu-util/tickets/) dfu-util: No DFU capable USB device available make[2]: \*\*\* [program-dfu] Error 74 Any info would be appreciated. I could’ve sworn I got this to work, at work, without any difficulties … ---
**Author:** ![UMD](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/umd/32/5850_2.png) [@UMD](https://community.particle.io/u/UMD)\ **Post date:** [October 13, 2018, 9:46pm UTC](https://community.particle.io/t/no-dfu-capable-usb-device-available/44531/2 "2018-10-13T21:46:01Z")
Assume that the device is in DFU mode! Have you tried running the DFU utility outside of the dev environment? Or particle cli flash command? ---
**Author:** ![jberi](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/jberi/32/19613_2.png) [@jberi](https://community.particle.io/u/jberi)\ **Post date:** [October 14, 2018, 7:07pm UTC](https://community.particle.io/t/no-dfu-capable-usb-device-available/44531/3 "2018-10-14T19:07:40Z")
@UMD is right - did you put the device into DFU mode? A device won’t automatically enter that mode. Instructions can be found [here](https://docs.particle.io/guide/getting-started/modes/photon/#dfu-mode-device-firmware-upgrade-). ---
**Author:** ![mprogers](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/mprogers/32/18458_2.png) [@mprogers](https://community.particle.io/u/mprogers)\ **Post date:** [October 14, 2018, 9:42pm UTC](https://community.particle.io/t/no-dfu-capable-usb-device-available/44531/4 "2018-10-14T21:42:20Z")
That solved my problem, thanks, gentlemen. I hadn’t used dfu-util much, if at all (a testimonial to how well-engineered the Photon is), and since Particle: Cloud Flash just took a couple of keystrokes, I figured Particle: Flash Application (local) would work exactly the same. ---
**Author:** ![nrobinson2000](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/nrobinson2000/32/15624_2.png) [@nrobinson2000](https://community.particle.io/u/nrobinson2000)\ **Post date:** [October 15, 2018, 1:23pm UTC](https://community.particle.io/t/no-dfu-capable-usb-device-available/44531/5 "2018-10-15T13:23:19Z")
> [@jberi](#): > > A device won’t automatically enter that mode. Instructions can be found here. Are there plans to implement this feature into Particle workbench? All that is required is to set the serial baud rate of the device to `14400`. I’ve done this with po-util and it really speeds up flashing time when the device is put into dfu mode automatically. ---
**Author:** ![mprogers](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/mprogers/32/18458_2.png) [@mprogers](https://community.particle.io/u/mprogers)\ **Post date:** [October 15, 2018, 1:45pm UTC](https://community.particle.io/t/no-dfu-capable-usb-device-available/44531/6 "2018-10-15T13:45:24Z")
And as the poster child for why this is needed, I’d like to second this request! 😀