valente wx enable gsm

i got a htc valente wx -s-0ff and bootloader unlocked- which is from au japan, i want to make it usable in gsm but annot activate gsm, i search around and found ISW13HT_Sense5_Global_Edition_4.01.973.1_htcsoku.z ip
so i flashed custom recovery and flashed the zip, after flashing finished , i rebooted it comes to htc screen and goes off, any body have an idea of to make this phone work on gsm