[htpcero]

I hope linux users can shed light on how to get either 1.72 or 1.66  firmware installed, without a copy of windows.

I'm planning upgrade with Windows PE USB stick.

https://knowledgebase.macrium.com/displa...scue+media

Macrium Reflect Free Edition has easy wizard for building Windows PE boot stick.

https://docs.microsoft.com/en-us/windows...able-drive

Or you can make one manually if Macrium one does not work.

I tried this.

Win10 PE boots ok from a USB stick on the J4205, and the 1.72 FW update tool can be launched but it fails to detect the LSPCON graphics device; trying to start the upgrade regardless fails with the same error. I tried booting WinPE with the TV receiver connected to either port (DVI+adaptor, and hdmi2.0), same result.

I also tried with the v1.66 installer, same error message: "System Connection Failed"

I tried installing the J4205 graphics drivers to the live PE instance, but that failed. Only thing I can't think of (short of making my HTPC dual boot which would be awful) is trying to get the J4205 drivers into the WinPE ISO


Did you succeed updating your J4205 lspcon firmware to 1.72 via booting from WinPE?  Any hint or guidance would be welcome