I have a couple of threads you can read through. They may help, I had these bookmarked from Octorber of 2022, so you’ll have to see if there is anything that would help you out…
https://forum.lightburnsoftware.com/t/re-firmware-for-jl1-board/78315
I have a couple of threads you can read through. They may help, I had these bookmarked from Octorber of 2022, so you’ll have to see if there is anything that would help you out…
https://forum.lightburnsoftware.com/t/re-firmware-for-jl1-board/78315