Sorry... a logicboard is dead.. when its dead... there is nothing to check if the system will not startup.
if - as you said - all other parts will be ok - then its a faulty logicboard that has to be replaced.
in my company i do not need more than 1-3 days (depends on how fast its delivered by apple) to replace this part.
why waiting 4 weeks ???
if - as you said - all other parts will be ok - then its a faulty logicboard that has to be replaced.
in my company i do not need more than 1-3 days (depends on how fast its delivered by apple) to replace this part.
why waiting 4 weeks ???