Help with flashing stock rom

Hi guys,

I've got a SM G9208, which came from Taiwan.
Yesterday I tried to install TWRP 2.8.7.2 and when it booted, it is non responsive, I couldn't press anything and couldn't swipe where it says swipe for modification at the bottom. This is flashed through the TWRP manager thingy.

So I thought i might as well go back to stock recovery because I can't seem to boot into the phone at all with this recovery. So I downloaded G9208ZMU2COK8_G9208CHM2COK8_G9208ZMU2COK8_HOME.tar .md5 from the sammobile website thinking that thats the one i needed, which turns out to be a mistake. Now my phone's got a chinese firmware, instead of the taiwan firmware. I tried to flash the taiwan firmware G9208ZTU1BOH2_G9208ZZT1BOH2_BRI, but it says sw rev check fail device 2 binary 1. I think this is because the bootloader for the china one is newer than the taiwan one?

Does anyone know how I can install the taiwan rom now?

also, i've tried flashing TWRP 2.8.60, 6.1, 7.0, 7.1, 7.2 all to no avail.
I couldn't use my sim at all previously, but then i flashed the taiwan modem.bin and at least I have signal now.

Thanks!

Download from this link