i have a PAL SCPH-1002 Playstation 1 with PU-8 board. can anyone please show me a diagram of how to install these modchips i pulled from PS1 Slims.
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Last edited by spellforce7,
See this thread: https://gbatemp.net/threads/ps1-reads-backups-but-not-original-games.587436/ especially post #7. It contains the – for me – most plausible explanation: The drive with legit disc and the modchip give the license string at the same time. This results in nonsense and the legit disc is rejected.ok i got a weird problem now. i installed the modchip but now only burned backup games are booting and not the original. when i put the original game its says insert dics. any solution. i followed this diagram
thanks. i will just use this one for backups and the ps1 slim for original discs.See this thread: https://gbatemp.net/threads/ps1-reads-backups-but-not-original-games.587436/ especially post #7. It contains the – for me – most plausible explanation: The drive with legit disc and the modchip give the license string at the same time. This results in nonsense and the legit disc is rejected.
It is hard to do anything about this when not knowing what chip (what code) is used and if it is (fully) compatible to the PU-8 and how it gets installed correctly.
A new modchip, MM3 or PsNee, should solve the problem. I've yet to encounter a readable disc (legit or burned) that my PS1 with PsNee doesn't start.
Since backups do start, you could also burn a Tonyhax boot disc and ironically use the "nocash" unlock for starting legit discs.
thanks for the chip identification.Based on the original install pictures, both are "ONEchip".
Both installs have the chip connected to the bios to bypass the extra region check that the pal PSone has. ONEchip is the only pic based chip that connects there. Not playing originals will probably be because it was never designed for use on anything except the PAL PSone.