please advise

[steve p]

i fitted messiah 2
with mod fitted & using an original ps2 game ps2 seemed as if it was going to boot (playstation logo) then would go to insert playstation medea
back ups would go straight to insert ps2 medea

on bios chip p is second leg in, i bridged 3rd 4th & 5th legs
what happend was my son knocked me while i was soldering wire o
have removed mod and all wireing
ps2 still sounds tinny and will not attempt to boot any thing just goes straight to insert ps2 medea screen

i suspect i might have shorted bios chip with the battery still being fitted to m/board

possible warning for other forum members

thanks in advance