T805 bad flash in Odin and no recovery with button combo

Hi everyone, some help is needed. Mistakenly when rooting my stock T805 with CF autoroot, tired and sleepy, I flashed it in Odin in BL (bootloader) and not in AP box as I should. Soft bricked it, couldn't go back to stock, somehow managed to install recovery, from there to some AOSP rom and finally to Xtrolite (which is great) .Anyhow, all is working now, EXCEPT, i still cannot flash stock rom in Odin, seems i destroyed bootloader but then again, I flashed stock bootloader-only file, i got recovery, any rom etc. Help is needed what to do??
Also, is this normal that VOL UP+ POWER+ HOME wont enter recovery?? I remember this when i bought it, with knox 0x0 and now also, with TWRP, i have to use an app to reboot to recovery?! weird...

Cheers!