So first of all, im already aware of this thread.
I have a similar problem, but it only happens as soon the psp is activated...
for instance, i can
"shoot. shoot. shoot. shoot. then shootshootshoot (PSP) PCHHHHHHH" then ball drops.
And it is leaking from the tip of the bolt:
The bolt is lubed, tried to reset board...What else?
purple led is flashing when it happens btw.
Thanks in advance.
(can take a video if needed)