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MBP Mid 2012 EFI Firmware [RESOLVED]
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9 years 3 months ago #92 by matlock
MBP Mid 2012 EFI Firmware [RESOLVED] was created by matlock
Hey all!
Excellent write up.. I've read twice and I'd like to try flashing the efi chip with firmware from the community that is unlocked.
I'm working on a mid 2012 mbp 13".
Anyone able to send me this file?
Thank you all in advance.
Matlock
Excellent write up.. I've read twice and I'd like to try flashing the efi chip with firmware from the community that is unlocked.
I'm working on a mid 2012 mbp 13".
Anyone able to send me this file?
Thank you all in advance.
Matlock
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9 years 3 months ago #95 by thaGH05T
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Replied by thaGH05T on topic MBP Mid 2012 EFI Firmware [RESOLVED]
I need the EMC # associated with your Mac.
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9 years 3 months ago #112 by matlock
Replied by matlock on topic MBP Mid 2012 EFI Firmware [RESOLVED]
I opened up my mac, and found a reference to EMC No by the ram module slots.
EMC No: 2554
EMC No: 2554
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9 years 3 months ago #114 by thaGH05T
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Replied by thaGH05T on topic MBP Mid 2012 EFI Firmware [RESOLVED]
i5 or i7?
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9 years 3 months ago #118 by matlock
Replied by matlock on topic MBP Mid 2012 EFI Firmware [RESOLVED]
i5
Thanks for the help
Thanks for the help
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9 years 3 months ago - 9 years 3 months ago #119 by thaGH05T
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Replied by thaGH05T on topic MBP Mid 2012 EFI Firmware [RESOLVED]
Search and replace '<MODEL_NUMBER_GOES_HERE>' with your actual model number.
THIS
is the link to the correct EFI firmware that you need for EMC - 2554 13'' MBP i5. I have also attached a copy of it to the forum.
If I helped you, buy me a beer!!! Happy Hunting...
Last edit: 9 years 3 months ago by thaGH05T.
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9 years 3 months ago #120 by thaGH05T
If I helped you, buy me a beer!!! Happy Hunting...
Replied by thaGH05T on topic MBP Mid 2012 EFI Firmware [RESOLVED]
If I have helped you please donate by buying me a beer (see my signature.) or by clicking the PayPal tab on the left side edge of the screen.
If I helped you, buy me a beer!!! Happy Hunting...
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9 years 3 months ago #121 by matlock
Replied by matlock on topic MBP Mid 2012 EFI Firmware [RESOLVED]
Can you help me with understand with what i will be replacing the '<model number goes here>' with.
I've tried various permutations of:
A1278 (EMC 2554*)
Including
A1278
(EMC 2554*)
EMC 2554*
A1278 (EMC 2554*)
But i ultimately get an error about the image size doesnt match the flash chip's size
Thank you again for the help
I've tried various permutations of:
A1278 (EMC 2554*)
Including
A1278
(EMC 2554*)
EMC 2554*
A1278 (EMC 2554*)
But i ultimately get an error about the image size doesnt match the flash chip's size
Thank you again for the help
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9 years 3 months ago #124 by thaGH05T
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Replied by thaGH05T on topic MBP Mid 2012 EFI Firmware [RESOLVED]
Your serial number is what goes there. (I know it says model number.) I just sanitized all files that I have like this. So the serial number of your device goes there. From < to >. Your serial number is 12 characters long.
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9 years 3 months ago - 9 years 3 months ago #127 by matlock
Replied by matlock on topic MBP Mid 2012 EFI Firmware [RESOLVED]
... And with that last bit of information i have successfully bypassed the efi lock using your instructions!
I can't say thank you enough.
I'll be sticking around the community to try and help as much as i can. One word of advice... read, read, read the instructions!
Matlock
I can't say thank you enough.
I'll be sticking around the community to try and help as much as i can. One word of advice... read, read, read the instructions!
Matlock
Last edit: 9 years 3 months ago by thaGH05T.
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- token.paul
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9 years 1 month ago #243 by token.paul
Is it ROM without password? Looks like clean, no password and never was set.
Replied by token.paul on topic MBP Mid 2012 EFI Firmware [RESOLVED]
thaGH05T wrote: Search and replace '<MODEL_NUMBER_GOES_HERE>' with your actual model number. THIS is the link to the correct EFI firmware that you need for EMC - 2554 13'' MBP i5. I have also attached a copy of it to the forum.
Is it ROM without password? Looks like clean, no password and never was set.
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9 years 1 month ago #251 by thaGH05T
If I helped you, buy me a beer!!! Happy Hunting...
Replied by thaGH05T on topic MBP Mid 2012 EFI Firmware [RESOLVED]
Yea should be clean with the serial removed. Why? Have you stumbled upon some good news???
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- token.paul
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9 years 1 month ago #258 by token.paul
Replied by token.paul on topic MBP Mid 2012 EFI Firmware [RESOLVED]
Good news: 'Empty-password-stamp'
May be bad news: All dumps contains second serial number - MLB, which are located at offset 0x7FFF14 or 0x7FFF07.
It doesn't matter until device gets into Apple's tech hands. It is possible that both numbers should identify one device only.
May be bad news: All dumps contains second serial number - MLB, which are located at offset 0x7FFF14 or 0x7FFF07.
It doesn't matter until device gets into Apple's tech hands. It is possible that both numbers should identify one device only.
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9 years 1 month ago #259 by thaGH05T
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Replied by thaGH05T on topic MBP Mid 2012 EFI Firmware [RESOLVED]
Please elaborate, I looked at the offsets above and found no serial. Do you men the string at the very end?
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8 years 7 months ago #1305 by Matt
Replied by Matt on topic MBP Mid 2012 EFI Firmware [RESOLVED]
Hi, do you have the firmware for the i7 EMC 2554?
very thanks
very thanks
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8 years 7 months ago #1315 by thaGH05T
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Replied by thaGH05T on topic MBP Mid 2012 EFI Firmware [RESOLVED]
Yes we do in the downloads section, but why do you need one if it can be sanitized? It's better to show us the full picture so we can come up with the best course of action for you.
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8 years 4 months ago - 8 years 4 months ago #1924 by ADEE
Replied by ADEE on topic MBP Mid 2012 EFI Firmware [RESOLVED]
HI thaGH05T
I have same model (A1278 EMC 2554 i5) After Installing this file (i have replace serial number as you told ) but i don't have display on Mac Book Pro only black screen after I Re-Write EFI Locked Dump On It And Its Working Fine But With EFI Password.
Can you help me with that.
Thank You
I have same model (A1278 EMC 2554 i5) After Installing this file (i have replace serial number as you told ) but i don't have display on Mac Book Pro only black screen after I Re-Write EFI Locked Dump On It And Its Working Fine But With EFI Password.
Can you help me with that.
Thank You
Last edit: 8 years 4 months ago by ADEE.
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8 years 4 months ago #1950 by thaGH05T
If I helped you, buy me a beer!!! Happy Hunting...
Replied by thaGH05T on topic MBP Mid 2012 EFI Firmware [RESOLVED]
Yes please upload your original.
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8 years 4 months ago - 8 years 4 months ago #1961 by ADEE
Replied by ADEE on topic MBP Mid 2012 EFI Firmware [RESOLVED]
HI thaGH05T
Original Dump File I Have Sent You Via Contact Forum And Your Replied Me After Cleaning That Dump File Then I Write That File On Mac Book Pro But Its Shows 4 Digit Pin Code EFI Password Was Removed.
Then I Clear PRAM (Here's how to reset your PRAM:
Shut down your machine. Yes, all the way down, not sleep or logging out.
Press the power button and then press command-option-p-r.
Hold those keys down until your Mac reboots again and you here the startup chime.
Let go of the keys and let your Mac reboot normally.)
And Its Working Fine Now
.
But I Do Wanna Learn How To Clean Dump File
Thank You.
Original Dump File I Have Sent You Via Contact Forum And Your Replied Me After Cleaning That Dump File Then I Write That File On Mac Book Pro But Its Shows 4 Digit Pin Code EFI Password Was Removed.
Then I Clear PRAM (Here's how to reset your PRAM:
Shut down your machine. Yes, all the way down, not sleep or logging out.
Press the power button and then press command-option-p-r.
Hold those keys down until your Mac reboots again and you here the startup chime.
Let go of the keys and let your Mac reboot normally.)
And Its Working Fine Now
.But I Do Wanna Learn How To Clean Dump File
Thank You.
Last edit: 8 years 4 months ago by ADEE.
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8 years 4 months ago #1975 by thaGH05T
If I helped you, buy me a beer!!! Happy Hunting...
Replied by thaGH05T on topic MBP Mid 2012 EFI Firmware [RESOLVED]
Cleaning the dump is found in my tutorial, but I think I will do a writeup on EFI firmware and it's mysteries. Honestly token.paul should actually do that writeup as he is leagues above me with EFI technology.
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