# \[Solved\] Doing deep update

**URL:** <https://community.particle.io/t/solved-doing-deep-update/8022>\
**Category:** Troubleshooting\
**Created:** [November 11, 2014, 10:19pm UTC](https://community.particle.io/t/solved-doing-deep-update/8022 "2014-11-11T22:19:17Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![BDub](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/bdub/32/5137_2.png) [@BDub](https://community.particle.io/u/BDub)\
**Post date:** [November 11, 2014, 10:34pm UTC](https://community.particle.io/t/solved-doing-deep-update/8022/3 "2014-11-11T22:34:36Z")

</div>

Hi @nj187 Sounds like you are using the Spark CLI with this command?

`spark flash --usb cc3000`

If so you also need to make sure you have the DFU driver installed, and DFU-UTIL is installed on your machine.

Windows:

> **[Tutorial: Installing DFU-Driver on Windows \[24 Feb 2015\]](https://community.particle.io/t/tutorial-installing-dfu-driver-on-windows/3518)**
>
> So it seems like some :spark: owners want to go slightly advanced but instructions for installing the DFU-driver is a little vague. How to put your core in DFU-mode Press on BOTH buttons Release only the Reset button Release the Mode button once...

Mac:

> **[GitHub - particle-iot/device-os: Device OS (Firmware) for Particle Devices](https://github.com/particle-iot/device-os#3-device-firmware-upgrade-utilities)**
>
> Device OS (Firmware) for Particle Devices. Contribute to particle-iot/device-os development by creating an account on GitHub.

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