(PS1) Mayumi 4.0 12F683, 12F675, 12F629

I don't have a PAL SCPH-102 so there's no way I could test it.

 

i could test it for you, i goy 12F629 pics

 

With that scheme mm3 work only with patial stealth like stealth 2.8a HEX. Tt's old code with partial stealth. So porting it have no sense (referred to stealth2.8a).
Maybe a good poting of mayumi v2 on 12f84 can do the job (it have full stealth on old PU7 boards)

BTW if you need and wont port ONECHIP hex i can test on my PAL psone

 

Mayumi v2.1 works on PU7, but not PU8.

So as Calpis said - there is no universal chip.

Infact, there is nothing for the PU8 that supports stealth properly. One of my "todo" projects was to do a new PS1 chip from scratch - but as is often the case, lots of things I want to do but no time to do them.

 

With the recent research made by nocash, you can create an universal modchip different than every other modchip.

 

One chip to do everything outweighs needing multiple chips. Anyone defending the idea that multiple lines of code is a good thing should reevaluate their views. That is, unless there is a technical reason that limits such a thing. Unfortunately for idiots it looks like there is no technical reason to prevent a universal chip.

So you'll have to find another reason to defend multiple lines of code.

 

There isn't much need for a universal modchip other than the convenience factor.

Many people are talking about the "need" of a universal modchip (which should be its own thread) but nobody is actually taking the time to do it (see: put your money where your mouth is).

 

wtf does porting of code to more devices has to do with wishes of a "better and universal modchip" and how this work here somehow needs defending by the op?
I seriously don't get it. This is a port thread, not a claim of making a new modchip that will knock your socks off...

 

From my past post

There is a reason if the latest modchip code don't are anymore universal
The only universal region modchip are the ancient oldcrow code and the first mm1.x (and maybe the stealth2.x?)
Onechip is designed for the PAL psone, for the NTSC psone there's the mayumi v5 (with stealth) or you can the older modchip code...

@djelaba The nocash method it's something completely different. It's based on a custom code that should be injected in the psx mechacon. In other words you need something thath sends the code to the mechacon like an AR with flashed a custom FW, and not a pic based modchip.

Or you can use his bios (flashed on a new ROM) with a series of modification (nocash custom "bugged XD" bios section)

So more expensive and less practical solutions....


So everyone here defend nothing without a valid reason

Yeah....

 

A gentleman and a scholar, I applaud your work Mord.Fusdang.

The others should take their discussion elsewhere, this is a release thread.

 

I know perfectly how it works, thank you
I was just pointing out the fact that it is now possible to create an fully universal modchip, which is more like a bios modchip than a drive modchip.

@deserada : my messages weren't to criticize mord.fustang's work. I used the discussions (remember, this is a forum) around his release to point out to anyone willing to do somethig new for Playstation that it was possible to create more elaborate modchips.
Skywalker, from hitmen already create some device to change the bios, but now, it is possible to circuvent the copy protection without patching the drive itself.

 

Hey stay easy mate!
I hate when people here begins.... bah... better to stop here....

 

You're taking it waaay too seriously...

 

Just to note, I just realized the other day that the Hex files for Mayumi v4 12F629/12F675 and 12F683 are in fact 100% the same, even when MD5'd.

The Hex files for the MM3 port are not the same however. Mostly because Mayumi uses external oscillator and MM3 uses internal. Therefore MM3 needs OSCCAL register for 12F629/12F675 (12F683 doesn't use OSCCAL register) and Mayumi doesn't need it at all because it doesn't use the internal one.

 

Incidentally, that approach isn't universal - it doesn't work on any Japanese console. In the case of the SCPH-1000, it's because the code simply isn't there - on the later Japanese models, it's present, but patched out.

 

I'd love a chip that could bypass that JP region locking. Super annoying.

 

This is a different thing, in addition to the region lock in the boot ROM - on the PAL and NTSC:U/C consoles there are a series of undocumented commands you can send to the CD controller that will turn the security off, so it will boot imports and copies. On the Japanese machines, the code is still present in the mechacon, but it isn't called.

 

Great work brother this worked for me where the mm3 port did not.

I want to test the mayumi v5 on a us psone but not sure what the ic used was

 

Glad it worked for you.

Which MM3 port did not work and what PIC were you using? Also which model PS1?

Mayumi v5 I believe is for 12C508 (should also work with 12F508) and is only for the PSOne (slim model).

 

12F629 is the chips I hAve. Pu-22 was the main board scph-7500 . Mm3 port from euasia. I can't say for sure if I tested another port.

I have a USA psOne ready to test