@mrt10001 thats why i checked system with adb,
it also says halion 5 so that means its based of android 5 but there is no android 5 stock rom for this device does this mean i need to use lineage/cm as a base and not stock rom?

update: it now shows a loading screen with a jumping orange dot
fixed by changing my csc from dtb to dtm and back to dtb dont know how the f that worked but it did (probably also other stuff involved)

and it just booted up

thx for your help

wtf am i doing wrong here,
flashed stock with odin (reformat and nand erase all ticked to avoid any weirdness)
the used the ubports installer .deb package in a kde debian live iso (apt --fix-missing has also been run)
and i still have the exact same behavior
so installer finishes the phone reboots into recovery and i press "reboot to system" wait for 15 mins, go into adb check /system and its empty/not mounted

the installer fails flashing in download mode as my drivers are setup for odin so i manually packed "%appdata%\ubports\s3ve3g\firmware\halium-unlocked-recovery_s3ve3g.img" into an odin tar as boot.img and recovery.img as this is where heimdall would flash that image according to that error, i flashed it then clicked ignore and proceded with the install

then it asks to unplug the phone and let it reboot to a screen with little red text which i did, then the install proceeded normally and finished

the the phone boots into recovery mode and loaded for a few minutes before putting me into a normal recovery screen,
where i pressed reboot to system

afterwards i landed on the same bootscreen with the little red text where i let it sit for a good 15 minutes after that i got impatient and connected adb and found out /system is empty

so where did i go wrong and are there any manual install instructions
as the auto installer dies to the mess of drivers on my pc