MACBOOK A1466 EMC2632

hello i have this question.
i have download from download emc2632 for macbook air 2013 i5 1.3
when i write and insert back on the macbook with a new serial the macbook work ok maybe try to sturtup with a new installation maybe don't start and is very slow .
i attach file downloaded and read . the read have a old serial number locked can help me please.and the downloaded have a serial clean
Very thanks

Here is your READ/Dump with the password removed
Clear/reset pram a couple times upon first boot
Let me know how it worked for you

hello with your file not go on the macbook... thanks a lot you try other solution

That file was your read file, did you dump multiple reads & compare them to make sure they were alike? All I did was remove the password, no other changes made.

At this point, I would suggest take your read file and copy the ME region into the downloaded donor file.
www.ghostlyhaks.com/blog/apple-efi/25-clean-me-region

One reason it is running slow could be a symptom of bad/mis-matched ME region.

what you need for help me my friend? another reading after boot ? i have used a clean emc and insert only serial number clean and the macbook start with recovery yosemite maybe when i try to install new operating system stuck on reading show the apple with a side bar without boot .
is possible for you to fix my region