successfully managed to ZIP files from O2 ZINC to try to copy the STK files from the ZINC and copy to the XDA 2.
with VERY FUNNY RESULTS, look at the attached JPEG file of my screen copy of the ZIP file that i got from the ZINC.
look at the encircled RED, the SIMSEC.DLL, SIMTKIT.DLL, SIMTKUI*.MUI, are all ZERO BYTES because ROM based files CANNOT be copied or overwritten in any device.
I think, and this is per deductive reasoning, these exact same files which we should change, however, these files cannot be copied from another device to another device....because it is ROM based. so if someone can copy these files, pls do and upload.