Expect to get 15-20% less than the prices listed above for each condition downgrade. For example, one company would pay $830 for a MacBook Pro Core without an engraving, but its offer dropped to $550 if the MacBook Pro was engraved – a difference of $280. If your MacBook Pro has a personalized engraving, it can cost you. Shipping your MacBook Pro? Here’s how to package it securely and avoid costly damage Learn more Some buyers will also pay more if you have the original packaging – usually worth an extra $10 or so.

The original serial number, still present in the attached dump, is C02HD0QRDW47.Selling A Phone? Find What It’s Worth › MacBook Pro Price Factors Accessories can net an additional $10 to $20. Why does it detect the number as blank when it's changed? A dump of the ROM is attached if that helps anyone. I then went back to the file I modified, changed the serial back to the original, wrote it back to the ROM, and when I booted it, it detected it just fine and worked exactly like it did before. I tried Blank Board Serializer to write the number that way, but it just had an error and wouldn't do anything. When I boot the system up and boot Apple Hardware Test, the serial number comes up as blank.

I saved the file, and wrote it back onto the ROM. I made sure not to add any extra spaces or anything, and made sure the string was still located at the same offsets as the original. I located my original serial number in the file, and changed it to the desired number. I then used that to dump the ROM, and opened the resulting file in a hex editor. This is what I've done so far: I removed the ROM from my MacBook's logic board, and put it into my EPROM programmer. Basically, what I'm trying to do is change the serial number on its logic board, but so far my attempts have been unsuccessful. I'm facing a bit of an issue right now with a 2.5GHz Late-2011 15' MacBook Pro, EMC number 2563.

Apple macbook pro 2011 serial number