Recent content by Roamin

Nah , nothing bad happens except crashing the game. If you're handy , using a bit more hardware (a relay, a micro controller) and a dual SD card adapter, it's possible hold a button (I used P1 quick kick) during boot to select which game you wish to play.

Yes that's how you can get those made , PCBway or other board manufacturer will take kicad files, then you have a choice of the many different options like pcb color , thickness , trace thickness (weight) , silkscreen and etc. Most of the manufacturers have decent turn around times.

Unfortunately no, I tried a lot of things but never got anywhere. If I ever get my hands on a known working security chip, I'd change that next but otherwise I really don't know what to do next.

I'm using a microntroller that has an input connected to the low kick button, and use 2 different outputs. One is connected to a relay that sets A19 high and the other output is connected to the SD card switcher board. The selector switch of the SD card selector has 3 pins but you only really...

Yes I know, but this method requires a dual sd card adapter + hardware switch. His boot rom allows to software switch & reset game at will and eliminates the dual SD card adapter by combining both HDD data into the same one. It would still require to bend pins and solder a wire , but it...

I'm wondering if there's a way you can set a single bit high somewhere on the board? If so , this bit could be tied to A19 of the sound roms via the regular method of bending the pin and jumping it to other roms and then use your combined boot rom + combined HDD data, eliminating the need for...

Here's a follow-up post since I received my SD card switcher. At first I assumed the common pin was in the center of the switch but it wasn't , and so my relay would actually short power and ground together when switching, good thing my power supply is protected against short circuits. Then I...

Have you checked all the cpu pins under a magnifier or microscope? Bad solder on the cpu is very common on these boards.. Most phones now have a decent enough magnifier , use that and a sewing needle to gently try to move each pin one a at time to rule that out. Sorry I can't be of any help...

Go back a few pages to post #475 where Neku gives some more specific details. Follow the KI1 & KI2 any-board ROMs link in his signature for the files.

Thanks a bunch! I came pretty late to the party and I actually had not read the entire thread.. I thought Neku's solution was the only one so far. I ordered 27c801 roms and a dual CF board , but was shipped a board with only 1 CF connector populated. Haven't heard from the seller yet.. I then...

Is this project dead? Last words from Neku were on may 20th .. Almost 7 months ago.. I know patience is the key, but I can't wait to dual boot KI/KI2! Hoping by new years we have good news!

Nice setup! That's good news that no magic smoke has been released! I'm sure I speak for everyone when I say I'm eager to have the final product in hand... But what's a few more weeks of waiting when it's been years hoping for that solution. Good things come to those who wait! If there's any...

I'm in as well. It's hard to suggest a price not knowing what the entire final kit will contain, but I'll definitely pay what it's worth.

Thanks for your input! I'll take anything I can :) I will focus on that crystal and dipswitch for now.

I've had this Mortal Kombat 4 board that worked fine like 15 years ago. For the longest time it was stored and didn't move at all. About 2 years ago I pulled all my boards out of storage and installed a JAMMA switcher in my cabinet. Every other board worked right away , but MK4 no longer did...