FunKey-Project.github.io/docs/user_manual/tutorials/software/firmware_update.md

A firmware upgrade can be performed simply over USB without opening the FunKey S console.

Get the latest "FunKey-rootfs-x.y.z.fwu" firmware update file directly from here or from the bottom of the latest release page in the "assets" section:

https://github.com/FunKey-Project/FunKey-OS/releases/latest{target=_blank}

{.lightbox}

Display	Action
{.lightbox}	Connect the FunKey S to your computer using the provided micro USB cable, then open it to turn it on
{.lightbox}	At the launcher's main screen (example here with RetroFE), press the key
{.lightbox}	Press the or keys until you see "MOUNT USB"
{.lightbox}	Press the key twice to confirm
{.lightbox}	"EJECT USB" is now displayed instead, now go to your host computer and open a File Explorer window
{.lightbox}	You should see the FunKey S appear as an USB drive on your computer in the File Explorer (example here with Windows 10)
{.lightbox}	Drag & drop the ***FunKey-rootfs-x.y.z.fwu file you just downloaded at the root of this USB drive on your computer
{.lightbox}	Eject cleanly the USB drive from your computer
{.lightbox}	Back on the FunKey S, at the "EJECT USB" menu entry, press the key twice to confirm
{.lightbox}	The FunKey S will then reboot and perform the upgrade

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