zenfon5 is loop and dont flash

Hi
Please help me:
I have a zenfone...
I erased my phone system in fastboot...
now my phone haven't a operation system
Please help me to flash a rom on my phone...

It official Rom (downloaded it from :asus suport (UL-ASUS_T00F-WW-3.23.40.60-user.zip and UL-ASUS_T00F-WW-2.22.40.53-user.zip ) Dont work

my phone is : a500cg asus t00f ww