[caption id=”attachment_963” align=”alignnone” width=”565”] There are eight points to solder in total.[/caption]

[caption id=”attachment_971” align=”alignnone” width=”560”] Above is the pinout, from pin 1 through to pin 8.[/caption]

Mayumi 4 supports four different modes on the SCPH-550x model / PU-18 board. To change modes, press and hold reset for two seconds.

Mayumi v0.9 mode –> Mayumi v1.0 mode –> Old mod-chip mode –> Disable mode

v0.9 Mode Supports many anti-modchip games.

v1.0 Mode Supports even more anti-modchip games.

WDT_OFF, ExtRC_OSC, MCLR_OFF