This 820-2530 had an short in the PP3V42 circuit and no green light. No waterdamage/visible damage. I fixed that and had to replace the SMC. Now it has a green /orange light again, battery indicator works, it turns on, has backlight and even chimes, but thats it. I cant enter boot menu (tried external keyboard too) and it also won´t boot from a known good installation drive. Now i am stuck.
Thanks for any help.
Thanks for any help.