Metal Slug X fix (dead Altera chip)

[smkdan]

I posted this in fremen's troubleshooting thread but I'm making a proper thread incase anyone interested missed it. This is to get dead MSX carts working again if the MAX chip died.

I put some info and repair stuff is on the wiki. I'll finish the second set of instructions after I poke around my cart a bit more.

Fixing it if you have a donor BK1 board is really simple but there's the option of hacking up the EOP to be playable without the MAX.

Thanks to ack for the handy board scans.

 

[Neo Alec]

I hope I never have to do this, but interesting fix anyway. Thank you for posting it. Looks like it's gonna take quite a bit more work to finish.

 

[DanAdamKOF]

you reversed the cpld?!?!?!? awesome!!!!

edit: read a bit too fast, still awesome

 

[ne7]

thanks so much for that smkdan - just successfully fixed a totally dead metal slug x I got really cheap with a dead altera chip (it looked like it had actually blown a corner off itself!) using this method \o_

 

[bustedstr8]

Anyone have the P1 file. The link on NeoDevWiki is dead.

 

[GadgetUK]

The link worked for me? On this page:- https://wiki.neogeodev.org/index.php?title=Repairing_Metal_Slug_X At the bottom, P1 replacement.

EDIT: Or is that the encrypted version?

 

[bustedstr8]

OK...I got it. Safari was being fussy for some reason.

 

[bustedstr8]

I just finished the repair and it works great on a US bios. It did have glitches with Unibios 3.1.
I noticed no sound in the intro, Title was garbage in Softdip, started at Level 1 and player stock was default 1.

Also, if people use this guide. JV13 is open and JV9 is closed.
https://wiki.neogeodev.org/index.php?title=Repairing_Metal_Slug_X

 

[aha2940]

I just finished the repair and it works great on a US bios. It did have glitches with Unibios 3.1.
I noticed no sound in the intro, Title was garbage in Softdip, started at Level 1 and player stock was default 1.

Also, if people use this guide. JV13 is open and JV9 is closed.
https://wiki.neogeodev.org/index.php?title=Repairing_Metal_Slug_X

So, the decryption of the P1 seems to have issues? anything that can be done to improve it?

 

[serge85]

I fixed a MS X with that P1, no problems whatsoever with 3.2 Unibios.