Re: Macbook M1 bypass FMM / EFI Unlock
As I've yet to read the entire thread, I apologize if my statements are:
- Redundant
- No longer possible
Pre-2018 (non-T2):
1. EFI | ROM .BINs contained the AppleID of an iCloud logged in user.
2. SN modification requires updating a SN-derived CRC HASH.
Medusa 2.7+ edits the SN + fix the Fsys block's checksum on < 2018 macs.
I'm feeling like this is going to be necessary also.
Maybe the BIN location is the same / similar (equal sizes)
I'll look for the exact location with a HEX editor
Compare the file-differences to find the exact location.
Any suggestions of a mac application ideal for this (quickly) may help.
If all of this is common knowledge, I apologize for wasting anyone's time.
The HELP in this forum is just SO AMAZING that I felt obliged to try to do SOMETHING that could be of some utility. And to that end, I have also found the method by which I can read the BIN from my CH341 on MacOS, and intend to provide a thread on that topic ... as it's taken me YEARS to figure it out. If that's pathetic and again, common knowledge, sorry (and yes, I'm embarrassed).
I have several units with MDM locks, one of which is an M1
I will provide the info on the equipment I have in another post so this wall of text doesn't get any more onerous than it already is.
Originally posted by bluestone
View Post
- Redundant
- No longer possible
Pre-2018 (non-T2):
1. EFI | ROM .BINs contained the AppleID of an iCloud logged in user.
2. SN modification requires updating a SN-derived CRC HASH.
Medusa 2.7+ edits the SN + fix the Fsys block's checksum on < 2018 macs.
I'm feeling like this is going to be necessary also.
Maybe the BIN location is the same / similar (equal sizes)
I'll look for the exact location with a HEX editor
Compare the file-differences to find the exact location.
Any suggestions of a mac application ideal for this (quickly) may help.
If all of this is common knowledge, I apologize for wasting anyone's time.
The HELP in this forum is just SO AMAZING that I felt obliged to try to do SOMETHING that could be of some utility. And to that end, I have also found the method by which I can read the BIN from my CH341 on MacOS, and intend to provide a thread on that topic ... as it's taken me YEARS to figure it out. If that's pathetic and again, common knowledge, sorry (and yes, I'm embarrassed).
I have several units with MDM locks, one of which is an M1
I will provide the info on the equipment I have in another post so this wall of text doesn't get any more onerous than it already is.
Comment