Thunderbolt problem with Early 2011 macbook pro after replacement logic board
My macbook pro 17" 2011 early GPU broken in last month.
and Apple replacement a new logic board for me.
but thunderbolt can`t read thunderbolt external HDD(seagate back up plus 1T with thunderbolt). (thunderbolt to hdmi and thunderbolt to firewire 800 are work well.)
so I take macbook pro back to apple changed logic board twice.
but still same problem.
Apple engineer told me cause new logic board changed new AMD GPU chipset.
so I have to wait new thunderbolt firmware update release....(I bought apple care and limit till AUG)
is it true?It doesn`t make sense.because thunderbolt work well before I changed logic board.
Does anyone know how to fix this problem.Thanks.
sorry my english very poor><MacBookPro, OS X Mavericks (10.9.2), macbook pro 17" 2011 early
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