[SNES] Mario Wordl SA-1 repro issues

[UniKennY]

Hello Team

Is someone already success to make a reproduction of Super Mario World SA-1 1.40 patch by Vitor Vitela ?

I upgrade the SRAM to 1024kb on my donor (Shining Scorpion, and works fine with the SRAM upgraded), and burn a classic MX29LV320 with the patched rom.

The rom has been tested with Mister.

But on my SNES, i have the bip sound of Nintendo logo, but the logo is glitched on white screen, then black screen.
Tried with 2 eeproms and same issue.

So maybe i missed something, but what ?

Thanks for your help

[Markfrizb]

Maybe post a picture of your build?

Maybe the sram isn’t mounted very good?

[UniKennY]

I'll post a picture soon;
The SRAM is fine, i've tested the donor game after the SRAM installation and it was OK (no glitch).

[SB_Electronics]

Super Mario World is a 4mbit game iirc. Did you expand the rom size to 32mbit before flashing it to the 29LV320 chip?