Update boot loader from X819XXU2APL1?

[ElementalWindX]

Is there a way I can update this Samsung Tab S2 VELTE from X819XXU2APL1 to whatever is newest and working with the newest LineageOS?

Currently I've wrecked the current install of android on this tab. If I have to install the stock rom in order to do this, where can I find it?

Thanks.

 

[emuandco]

https://updato.com/firmware-archive-select-model