Help identify and repair naomi cart convert

[davkilik]

Hello,
a few days ago i received this naomi cart convert.
I can't identify it.
it doesn't boot on a naomi 1.
I think ic22 is missing.

https://ibb.co/mRYLrGP

https://ibb.co/gJPYySC

https://ibb.co/MN42NY0

https://ibb.co/XD8DnBP

 

[nem]

You'll have to desolder one of the flash roms for identification.

Out of interest, what's the daughter board? That's new to me.

 

[MetalliC]

I think ic22 is missing.

right, it require program ROM (IC22). the game is Virtua Striker 2 2000

 

[nem]

And I thought nobody could tell the game just from the rom check alone. I was wrong!

I find it funny when people find carts that have been converted to really common games. Like really, go through all that trouble for Virtua Striker? I remember Yaton selling a ton of carts that had all been converted to Virtua NBA.

 

[MetalliC]

And I thought nobody could tell the game just from the rom check alone. I was wrong!

not only rom check sums. we've did in MAME tables with various useful info, like number of data ROMs (15 here), which decreased number of possible games a lot

 

[nem]

So what's the daughter board? Some security board?

 

[MetalliC]

we may only guess. my best bet - that PCB is security chip replacement, kind of

 

[davkilik]

thanks for the answers.

where can i find an ic22 rom?
have to program it?
can I use this card to make another convert?