Chosen Solution
Some weeks ago I went to a local Mac repair shop because of some dropped liquid… after some inspections on the damaged modules they said that the only damages were in the wi-fi and the disk, now they are saying that the motherboard is also damaged. I am suspicious because of some shady moves these people made. Now they are giving me back my Mac Air. This is my question: Is there a way to know if the motherboard they are returning me the mac with is the same as the one I always had? I think they might have switched motherboards…
The simple way is to open the About this Mac dialog box locating the systems specs and the systems S/N which is part of the logic board. Compare it to the bottom covers S/N they should match. I would also look at your repair tag as the S/N on their paperwork should have been the cases and lastly your original receipt from Apple (Paper or email) will also have the original S/N of the system. Besides the S/N you should be able to compare the specs of your purchase and what your system currently has.
