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MacBook Pro 13" Touch Bar 2018 820-00850

Discussion in 'BIOS Laptop' started by ThienBui, Aug 20, 2018.

MacBook Pro 13" Touch Bar 2018 820-00850 5 5 2votes
5/5, 2 votes

  1. B4RDOCK

    B4RDOCK VIP MEMBER

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    you read this chip desoldering ?
     
  2. jawaljawad37

    jawaljawad37 VIP PRO

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    FIRST MACBOOK PRO 2018 BRIKED :worried::worried::worried:
     

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  3. chipmunk

    chipmunk VIP PRO

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    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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  4. chipmunk

    chipmunk VIP PRO

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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.
     
  5. lifestone

    lifestone VIP MEMBER

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    Has anybody have success with this yet
     
  6. cifam

    cifam VIP PRO

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    ok is unlock now
     
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  7. Atinder Saini

    Atinder Saini VIP PRO

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    You unlocked via hardware?
     
  8. Ovanesn

    Ovanesn New Member

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    T2 firmware dump is from marked SPI memory IC.
     

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  9. Ovanesn

    Ovanesn New Member

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    Hi. Did you really unlock it?
     
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  10. Atinder Saini

    Atinder Saini VIP PRO

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  11. cifam

    cifam VIP PRO

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    yes really i unlock it . many macbook 2018 . imac /macbook air 2018
     
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  12. chochorzm1

    chochorzm1 VIP PRO

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    Cifam will you tell us some details :?
     
  13. 3com

    3com VIP MEMBER

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    How?? Ic?? Programmer??
     
  14. jawaljawad37

    jawaljawad37 VIP PRO

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    les discours sont facile
     
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  15. vampirekiller

    vampirekiller New Member

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    #55 vampirekiller, Apr 29, 2019
    Last edited: Apr 30, 2019
  16. Atinder Saini

    Atinder Saini VIP PRO

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  17. vampirekiller

    vampirekiller New Member

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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.
     
    #57 vampirekiller, Apr 30, 2019
    Last edited: Apr 30, 2019
  18. 3com

    3com VIP MEMBER

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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
     
  19. silentdie

    silentdie New Member

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    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
     
  20. ThienBui

    ThienBui CEO Staff Member

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    current Unavailable T2
     
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