Neo 2.2 problems loading ps2

[Adders]

Hi
First of all thanks to Charlie and Dal for your replies.
After back tracking through the last 30 days post I could not find the same problem, although it is possible I missed it, as there were so many other interesting notes.

I have tried several other boot methods such as the ones from ps2ownz.com
The method I use seems to be the only one that works. The mod chip I use is a neo 2.2. One I programmed my self with the code from maxking.
Could the code be wrong or could the micro controller be faulty. I have done every model of psx with no problems. This one is a pain.
Any more suggestions

P.S where can I get code for Neo 2.5 if this is better.
Thanks Adders