Messiah Boot Problems Pls help

[Stig]

Hi I am new to these forums but not new to PSX/PS2 'backups'

The problem I have is with a SCPH30003 with Messiah chip.

I got my sons and my own PS2 chipped with Messiah and all was well for a while ... boots up everything without need of boot disk and swap tricks.

My PS2 now seems to be stuck in a certain mode it will boot up copied DVDrs and original DVDs and original normal games.. It will not boot up on Memory Manager, Xtreme FM and any CDRs ......
I can take a CDR and boot up on my sons machine then put it in mine and it says cannot read disc. ?

I have tried the double button hit and the holding down for three seconds at start to reset chip but nothing works ......

Pleas help as after shelliing out for the PS2s and the hassle I had getting the Messiah chips fitted (reputable bloke) this is the last thing I need.

Thanks in advance

P