Samsung Exhibit II 4G (samsung-t679)
This is an active work in progress, which you can view/contribute to here: https://github.com/jkayani/pmbootstrap/tree/device-samsung-t679
I'm waiting for a battery for the device to come in so I can try installing and booting pmOS.
You can view the original kernel sources for the device here: https://github.com/jkayani/exhibit-kernel. I originally obtained them from here (thanks Jocala!): https://github.com/Jocala/Samsung-Exhibit-II-Kernel, but had to put them in my own repo so that the source was in the root.
What does not work
How to enter flash mode
postmarketOS port to Samsung Exhibit II 4G: https://github.com/jkayani/pmbootstrap/tree/device-samsung-t679