you need the particle CLI. Follow these steps first https://docs.particle.io/guide/tools-and-features/cli/electron/ then after you install and update the particle CLI go here https://github.com/spark/firmware/releases and download system-part1-0.5.0-rc.1-electron.bin and also system-part2-0.5.0-rc.1-electron.bin Connect USB from your computer to your electron, after that open the node.js command prompt and move the two files you just downloaded to the directory that your node.js is showing. Then type particle flash --serial system-part1-0.5.0-rc.1-electron.bin and press enter it will tell you to hold your electron mode button until it flashes blue. Once it’s flashing blue hit enter. Then type particle flash --serial system-part2-0.5.0-rc.1-electron.bin and repeat the same process. In the web IDE you now need to change your firmware to the newer version in the devices tab. You may need to unclaim and reclaim your device for it to work.
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