XO-2 Points: B and C are DVD controller?

[Loco]

I installed my XO-2, but when I turn it on the video makes a little "jump" and keeps black... The eject button just flashes for a while and then keeps turned on (again and again if I press it).

Now, the B and C contacts (VIAs) may be loosy, but I've checked every other points.

Can be those VIAs points be responsibles of that kind of behaviour?

Ground point are 2 metal pieces just near, but the multimeter says they are bridged... Is that right? The other metal pieces that are at the right are untouched and they also are identified as bridged...

Thanks and greets!

[Loco]

Ok, I just got this chip partially working...

The problem I was mentioning before was being caused by a loosy "C" point, I soldered B and C to the alternate points suggested and....

(It's a XO-2 without "K" point)

PS2 Original CD - Boot
PS2 Backup CD - Go to the browser (it says it's a PS2 CD, but it won't boot)
PS1 Original - Boot
PS1 Backup - Boot
PS2 Original DVD - RSOD
PS2 Backup DVD - I don't have any
DVD Movie - Boot!

Any suggestions, please? Any point you know that causes this behaviour?

Thanks!