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Modchip reinstall need help

Posted: November 19th, 2018, 1:42 am
by pioingo
Hello Experts,
i am new here i have not found a post over these.
I have big Trouble with my Modchip. I must desoldering the chip.
Now i have soldered in the Modchip. But no Function. what i make wrong??

ist a 12508a soldered 5 wires.

Board Version PU-8 1-658-467-22

Thanks for any help…


Anyone can tell me how on what points right i must solder the chip.

Re: Modchip reinstall need help

Posted: April 2nd, 2019, 10:43 am
by Haldrie
Not sure if you still need help but I recently joined and posted a diagram of how to install a MM3 mod chip with stealth on the SCPH-1001 PU-8 motherboard. This install uses 7 wires instead of the usual 4 wires (so if you have 5 wires on yours that might be part of the problem). The only pin on the chip that is not used is pin 2 which on a MM3 mod chip is used to connect a LED to show when the chip is working but is completely optional.

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