1. Carnov

    OP Carnov Member
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    Currently, my old NTSC-U/C PS1 since back then can play backed up games, play original discs from different regions, and such so I assume it's already got a modchip albeit an earlier version. However, when I insert certain original CDs like YGO Forbidden Memories, it would just end up giving me those anti-modchip error screens.
    At this point, I should replace the modchip with something more modern right? Also, since my PS1's version is SCPH-9001, Mayumi should be good since it does things that MM3 does but better right?
     
  2. rusty_train

    rusty_train GBAtemp Regular
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    Not sure, you could always remove the mod chip and use TonyHax though.
     
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  3. KleinesSinchen

    KleinesSinchen GBAtemp's Backup Reminder + Fearless Testing Sina
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    Tonyhax is a good idea. It has an on-the-fly patcher. Maybe it also works while the old modchip is present (try before removing a working chip). YGO game is already supported. → See source code.

    If all else fails there is still the possibility to apply a patch to the image file.

    As for answering the initial question:
    A good source for information about PS1 modchips: https://quade.co/ps1-modchip-guide/ (follow the link for each chip for more information). I personally will try PsNee at some point (programming my own ATtiny or ATmega).



    Good luck and have fun!

    Edit:
    Latest Tonyhax now comes with CD images – for older modchips. Burn to CD-R, start Tonyhax and then your game backups. Should remove the problems with non-stealth modchips.
    https://github.com/socram8888/tonyhax/releases
     
    Last edited by KleinesSinchen, May 27, 2021
    alexander1970 and Carnov like this.
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