I have found a nice guy working for Nokia on repairing devices who is willing to do the service of changing emmc. In fact, he has already changed my broken sim tray on N950 (with a spare part ordered for N8, since Nokia does not have any spare part stock for N950, we asked).

Now the question is, where to find a new emmc chip as N9 64GB? If taken from N9 board there is a high chance for breaking it, is there any way to order the chips matching the pin?

(No, Nokia only provides the chip WITH the mainboard on N9...)