# spark core connection problem **URL:** \ **Category:** General\ **Created:** [October 30, 2019, 10:27am UTC](https://community.particle.io/t/spark-core-connection-problem/53005 "2019-10-30T10:27:45Z")\ **Posts on this page:** 14\ **Page:** 1
**Author:** ![gabriel7](https://avatars.discourse-cdn.com/v4/letter/g/6bbea6/32.png) [@gabriel7](https://community.particle.io/u/gabriel7)\ **Post date:** [October 30, 2019, 10:27am UTC](https://community.particle.io/t/spark-core-connection-problem/53005/1 "2019-10-30T10:27:45Z")
Hello everyone I have a connection problem between my Spark Core and the mobile application while I’m on the same WI-FI, I put it back in factory status but nothing works someone would have an idea of where the problem might come from thank you in advance cordially GONZALO Gabriel ---
**Author:** ![ScruffR](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/scruffr/32/6952_2.png) [@ScruffR](https://community.particle.io/u/ScruffR)\ **Post date:** [October 30, 2019, 11:38am UTC](https://community.particle.io/t/spark-core-connection-problem/53005/2 "2019-10-30T11:38:41Z")
Can you be a bit more specific about _what_ is not working and what device’s RGB LED is doing? Have you got the device already claimed to your Particle account? Does it show up in [console.particle.io](http://console.particle.io)? Can you communicate with the device via console? … ---
**Author:** ![gabriel7](https://avatars.discourse-cdn.com/v4/letter/g/6bbea6/32.png) [@gabriel7](https://community.particle.io/u/gabriel7)\ **Post date:** [October 30, 2019, 11:46am UTC](https://community.particle.io/t/spark-core-connection-problem/53005/3 "2019-10-30T11:46:57Z")
hello, no my spark core don’t communicate with the console the led’s after the connection protocols do little green flash lights but the application don’t see the core on the WI-FI and my particle account do not see it too ---
**Author:** ![peekay123](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/peekay123/32/810_2.png) [@peekay123](https://community.particle.io/u/peekay123)\ **Post date:** [October 30, 2019, 12:08pm UTC](https://community.particle.io/t/spark-core-connection-problem/53005/4 "2019-10-30T12:08:18Z")
The current Particle mobile app does not support the Core. The Particle CLI does and allows you to setup wifi over USB. ---
**Author:** ![ScruffR](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/scruffr/32/6952_2.png) [@ScruffR](https://community.particle.io/u/ScruffR)\ **Post date:** [October 30, 2019, 12:24pm UTC](https://community.particle.io/t/spark-core-connection-problem/53005/5 "2019-10-30T12:24:39Z")
> [@gabriel7](#): > > do little green flash lights A valid WiFi connection would be indicated by _ **breathing** _ green - not _blinking_. And a cloud connection - prerequisite to communicate with it via Console - would be breathing cyan. Hence I second @peekay123's suspicion that your device wasn't properly setup to connect to your WiFi network. For that you'd put your device into Listening Mode (blinking blue) and run `particle serial wifi`. ---
**Author:** ![ParticleD](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/particled/32/17016_2.png) [@ParticleD](https://community.particle.io/u/ParticleD)\ **Post date:** [October 30, 2019, 7:36pm UTC](https://community.particle.io/t/spark-core-connection-problem/53005/6 "2019-10-30T19:36:00Z")
Whenever anyone has issues with a Spark Core, the first thing I ask them to do is the following, to make sure that it's got up-to-date system firmware. > _\> Installing the Particle CLI_ > > You first need to install the Particle CLI. The Particle CLI is a command line interface (CLI) tool used to interact with the Particle Cloud, flash devices, and troubleshoot. To install the Particle CLI go ahead and follow the [instructions in this article](https://docs.particle.io/guide/tools-and-features/cli/). Once installed proceed to the next section. > > **Flashing your Spark Core** > > 1. Plug your Spark Core into your computer using a USB cable > 2. Place your Spark Core in DFU mode (blinking yellow) > 3. Open up a terminal/command prompt and issue the following command `particle update` > > If, for some reason the last command fails issue the following command, in order: > > 1. `particle flash --factory tinker`. Wait till the Spark Core's main RGB LED returns to flashing yellow > 2. `particle flash --usb cc3000`. Wait till the Spark Core's main RGB LED returns to flashing yellow > 3. `particle flash --usb tinker` > > These commands replace the factory reset image with the most up-to-date copy, patch the radio, and flash the default "Tinker" app which brings your Spark Core to an upgraded factory state. > > Once upgraded your device should reboot and begin flashing blue. It's then ready to set up. ---
**Author:** ![gabriel7](https://avatars.discourse-cdn.com/v4/letter/g/6bbea6/32.png) [@gabriel7](https://community.particle.io/u/gabriel7)\ **Post date:** [October 31, 2019, 9:42am UTC](https://community.particle.io/t/spark-core-connection-problem/53005/7 "2019-10-31T09:42:39Z")
hello ParticleD in DFU mode my spark core can’t connect to my computer “other peripherals” and no in the COM and LPT ---
**Author:** ![ScruffR](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/scruffr/32/6952_2.png) [@ScruffR](https://community.particle.io/u/ScruffR)\ **Post date:** [October 31, 2019, 9:52am UTC](https://community.particle.io/t/spark-core-connection-problem/53005/8 "2019-10-31T09:52:25Z")
In DFU Mode it is _ **not** _ expected to turn up under COM&LPT. But when it is still listed as “Other Peripherals” this suggests you are missing the DFU drivers (which would normally come packaged in the CLI Installer). The standalone driver package can be found here [http://binaries.particle.io/drivers/windows/particle\_drivers.exe](http://binaries.particle.io/drivers/windows/particle_drivers.exe) ---
**Author:** ![gabriel7](https://avatars.discourse-cdn.com/v4/letter/g/6bbea6/32.png) [@gabriel7](https://community.particle.io/u/gabriel7)\ **Post date:** [October 31, 2019, 9:55am UTC](https://community.particle.io/t/spark-core-connection-problem/53005/9 "2019-10-31T09:55:39Z")
thank you very much ---
**Author:** ![gabriel7](https://avatars.discourse-cdn.com/v4/letter/g/6bbea6/32.png) [@gabriel7](https://community.particle.io/u/gabriel7)\ **Post date:** [October 31, 2019, 10:07am UTC](https://community.particle.io/t/spark-core-connection-problem/53005/10 "2019-10-31T10:07:35Z")
I installed the driver it works it is recognized but it does not appear in the CLI (particle desktop IDE) ---
**Author:** ![ScruffR](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/scruffr/32/6952_2.png) [@ScruffR](https://community.particle.io/u/ScruffR)\ **Post date:** [October 31, 2019, 10:50am UTC](https://community.particle.io/t/spark-core-connection-problem/53005/11 "2019-10-31T10:50:36Z")
> [@gabriel7](#): > > it does not appear in the CLI (particle desktop IDE) What have you tried? How does the device show up in Device Manager? What does `particle list` and `particle usb list` give you? ---
**Author:** ![gabriel7](https://avatars.discourse-cdn.com/v4/letter/g/6bbea6/32.png) [@gabriel7](https://community.particle.io/u/gabriel7)\ **Post date:** [November 13, 2019, 9:28am UTC](https://community.particle.io/t/spark-core-connection-problem/53005/12 "2019-11-13T09:28:20Z")
I tried all of the options you say to me the device appears in port com, named Core serial (com3) and I can not find the tab paricle list and particle usb list can I know where she is thanks ---
**Author:** ![ScruffR](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/scruffr/32/6952_2.png) [@ScruffR](https://community.particle.io/u/ScruffR)\ **Post date:** [November 13, 2019, 11:36am UTC](https://community.particle.io/t/spark-core-connection-problem/53005/13 "2019-11-13T11:36:35Z")
> [@gabriel7](#): > > I can not find the tab paricle list and particle usb list That is no tab, these are CLI commands - CLI stands for Command Line Interface which is `cmd` or `powershell` on Windows, not a GUI. ---
**Author:** ![ParticleD](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/particled/32/17016_2.png) [@ParticleD](https://community.particle.io/u/ParticleD)\ **Post date:** [November 13, 2019, 9:30pm UTC](https://community.particle.io/t/spark-core-connection-problem/53005/14 "2019-11-13T21:30:42Z")
Gabriel – if you haven’t already done so, please install the Particle CLI tool. I provided a link to the instructions on how to do so – here it is again: [https://docs.particle.io/tutorials/developer-tools/cli/](https://docs.particle.io/tutorials/developer-tools/cli/) Then, follow the instructions I gave for updating the Core to the latest system and radio firmware. Then, as Scruffr suggested, do `particle serial wifi` to configure the Core for your wireless network. Once the Core is connected to your wifi (not before), you can claim the device to your account by doing `particle device add ` . It has to be claimed to your account for it to show up in the Web IDE and Console device lists.