I did a SFC mario RPG Japanese Version to English, the cart doesn't load up, I try it on a Super ufo pro 8 sd it says no cart, can anyone please help me please https://www.dropbox.com/sh/tteabfz5gmb9vj8/AAB7h1vdhc7Mx0AIlouXRzwsa?dl=0
This is a tough one, all I can suggest is check for shorts and continuity. Trace where from each of the 44 pins of the mask rom go to the SA1 chip The other thing to check is, whether the voltage regulator is working
What console are you playing it in? Mario RPG is very fussy with working with modded consoles unless you use a SuperCIC PIC installed in the SNES. If you have a PAL snes you will need to mode the cart to play on a Pal system. Have a look at the following http://www.mmmonkey.co.uk/super-mario-rpg-on-a-pal-snes/
I'm surprised, but there's actually one on eBay right now (Korean SFC carts seem so rare, they must be made mostly from unobtanium...). We're looking at $60 + shipping, which is roughly what a premade repro would cost you. And the latter doesn't have a badly torn up label...