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I need EFI for MacBook Unibody A1342 Was anyone able to get the original 6,1 firmware? I tried this method and now my MacBook says it’s a MBP 5,5. It’s a small detail but annoying so I’d like to flash back to the original if I could. The 15" MacBook Firmware.scap is not working for me unless someone else has come upon a solution. Update (05/18/2017) The link shows all models except the macbook 6.1 We can use Macbook Pro firmware 5.5 but Keyboard and mouse don’t work in Sierra. Only in El capitan. Computer - Identifier - EFI Boot - ROM version - SMC version MacBook (13-inch, Mid 2010) MacBook7,1 MB71.0039.B0E (EFI 2.1) 1.60f6 (SMC 1.5)MacBook (13-inch, Mid 2009) MacBook5,2 MB52.0088.B05 (EFI 1.4)MacBook (13-inch, Early 2009) MacBook5,2 MB52.0088.B05 (EFI 1.4) 1.38f5 (SMC 1.3)MacBook (13-inch, Aluminum, Late 2008) MacBook5,1 MB51.007D.B03 (EFI 1.4) 1.32f8 (SMC 1.2)MacBook (13-inch, Early 2008) MacBook4,1 1.31f1 (SMC 1.4)MacBook (13-inch, Late 2007) MacBook3,1 MB31.008E.B02 (EFI 1.2) 1.24f3 (SMC 1.4)MacBook (13-inch, Mid 2007) MacBook2,1 MB21.00A5.B07 (EFI 1.1)MacBook (13-inch, Late 2006) MacBook2,1 MB21.00A5.B07 (EFI 1.1)MacBook (13-inch) MacBook1,1 MB11.0061.B03 (EFI 1.0) 1.4f12 (SMC 1.1)
Review and download the firmware from here: About EFI and SMC firmware updates for Intel-based Mac computers. That should do it. Update (05/19/2017) OK now I see what you did you forced the MacBook system to use a MacBook Pro firmware instead of what it was designed to run with here. You’re in a bit of a pickle as Apple never offered an update for this MacBook. During production Apple updated the PCH logic which altered things enough that Apple needed a second version of the firmware (B02 Vs B00). The older board can’t support the larger amount of RAM as the PCH had a design bug within it (Intel fessed up and redid the chip) The only way I can think of here is to get a programed EFI chip (an Atmel chip if I remember correctly here) and physically swap the chip out. The company that sells these chips hopefully has the needed firmware. You’ll need to give them your systems S/N so its burnt into it as well. Now the fun! You’ll need to review the PCH chip version so you get the correct version of EFI code on the chip. As for running the newer MacOS Sierra I don’t think its worth it. Many of the newer OS’s use more of the RAM space which in this model is quite limited (4 GB version)! Sure it will boot up and may even let you run a small light weight program or two. But any real work will bog it down as it needs to use the HD for virtual RAM. The 8 GB version of the system is much better! But even still I wouldn’t try doing anything CPU intensive. Lastly, you don’t get the benefits of many of the newer features the newer hardware has.
