samsung galaxy ace won't turn on after installing custom rom! topic

well, looks like i'm totally f*cked up.
i have samsung galaxy ace (GT-S5830), but I've installed wrong custom rom. it is for GT-S5830i :(

here the rom goes : http://forum.xda-developers.com/show....php?t=2408748

after I press reboot on CWM, it just not powered on anymore. I even test with power supply, when I press power, it does not react!
the other problem is, my volume down key somehow break, so i can't use download mode!
will USB JIG work? it is VERY HARD to search USB JTAG here.