MacBook Pro 13" Touch Bar 2018 820-00850

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chipmunk

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Sep 24, 2014
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1
One option is to solder the ROM onto the CMIzapper Medusa Lever Shifter board.
This enables 1v8 ROMs to be used on a 3v3 system like the Medusa.
It also has space for the BGA ROMs as used in the A1534.
 

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chipmunk

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Sep 24, 2014
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This ROM is the firmware for the T2 chip. It is NOT the BIOS rom. The BIOS is probably stored in the Flash itself.
 

vampirekiller

Registered member
Sep 15, 2017
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There is a flash chip on the board which contains the initial start-up iboot module for launching the t2 system - Bridge OS. similar to the system on the iPhone. if you change the arguments iboot apparently you can run the flashing or recovery.

commonboot-args = debug = 0x4c0clast-boot-args-script-vers = auto-boot = truebacklight-level = 199 com.apple. System.rtc-offset = 0x2e11453c966a com.apple. System.tz0-size = 0x1000000dfr-burnin- counter = p

com.apple. System.rtc-offset = 0x2e11453c966a - unloked
com.apple.System.rtc-offset=0x2e11a3648000 - locked

Ovanesn - in dumps from him.

if there are people who are good at iboot launch system or iboot bootargs they will help

most likely the contents of the chip is not very valuable and can be restored and overwritten in case of failure by some kind of Apple protocols.
Apple website describes how to restore firmware t2 in case of failure to update it.

The serial number and the model of the MacBook are stored in the starting ROM for clear identification in case of loss and subsequent restoration of the t2 firmware.
 
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3com

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Jul 20, 2017
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only those 2 differences in the whole code assuming that the extraction is from a computer without icloud would open that to see it more thoroughly with 2 equal teams you by chance do not know anyone that I have some dump of MacBook Pro (13-inch, 2018, Four Thunderbolt 3 Ports) blocked
 

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silentdie

Registered member
May 23, 2019
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FRANCE
Hello,

Are there now any solutions planned to unlock EFI the macbook pro 2018 with a password?
Or nothing will ever happen in your opinion? (like iphone with icloud).

Thank you
 

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