To remove, physically disconnect the CMOS battery for 120 seconds while holding the Eject button. Upon reboot, the MEC will attempt to rewrite itself. You must interrupt this cycle by inserting a legitimate copy of The Bouncer (NTSC-J) and resetting three times.
SCPH10000.MEC is a supplemental BIOS component for the Sony PlayStation 2 (PS2) Scph10000.MEC