How does Apple replace bottom casings?

[SPNarwhal]

My Macbook Pro has been in for repair twice now, first time I got it back the bottom casing was scratched on return so they said they'd replace it during repair 2. I got it back today, wasn't replaced. I guess they just completely ignored that in the notes.

Anywho, was just curious as to how Apple even replaces the bottom casing since it has the Serial Number on it. ?

I assume they have some machine that just etches on your serial number to a brand new plate, but does the laptop need to be sent out for something like that? (and I know when they replace it, the new one DOES have your serial number on it as well.)

Just curious if anyone can confirm anything of their procedure.

 

[Binomio]

Assuming that you've sent your laptop to an Apple depot repair center, I will just say that your laptop is handled by many people and sometimes there's no way to know if damage is from the field (customer) or has been induced accidentally by a depot worker.

For the second repair, did you send your laptop to have the bottom case replaced exclusively? Or was there another problem or symptom?
A lot of times, notes from GSX (tool used by Apple) will not be fully transferred to the internal depot notes database, especially if there are multiple symptoms with the unit.

All models from 2011 and up do not get etching at the depot, only 2010 models and below. The newer macbooks do not have the Serial number etched, it is some special marking. Apple recommends writing the serial number on the internal side of the bottom with a sharpie.