MacBook Pro 13" Touch Bar 2018 820-00850

Discussion in 'BIOS/UEFI' started by technical, Aug 20, 2018.

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

Page 3 of 6
  1. 01ifix

    01ifix Well-Known Member

    Joined:
    Jun 10, 2015
    Messages:
    1,377
    Likes Received:
    103
    you read this chip desoldering ?
     
    #41 01ifix, Feb 9, 2019
  2. jawaljawad37

    jawaljawad37 Well-Known Member

    Joined:
    Aug 1, 2015
    Messages:
    73
    Likes Received:
    6
    FIRST MACBOOK PRO 2018 BRIKED :worried::worried::worried:
     

    Attached Files:

    • Like Like x 2
    #42 jawaljawad37, Feb 9, 2019
  3. chipmunk

    chipmunk Well-Known Member

    Joined:
    Sep 23, 2014
    Messages:
    27
    Likes Received:
    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.
     

    Attached Files:

    #43 chipmunk, Feb 12, 2019
  4. chipmunk

    chipmunk Well-Known Member

    Joined:
    Sep 23, 2014
    Messages:
    27
    Likes Received:
    1
    This ROM is the firmware for the T2 chip. It is NOT the BIOS rom. The BIOS is probably stored in the Flash itself.
     
    #44 chipmunk, Feb 12, 2019
  5. lifestone

    lifestone Well-Known Member

    Joined:
    Jan 24, 2018
    Messages:
    27
    Likes Received:
    1
    Has anybody have success with this yet
     
    #45 lifestone, Mar 1, 2019
  6. 18ifix

    18ifix Moderator

    Joined:
    May 12, 2015
    Messages:
    174
    Likes Received:
    41
    ok is unlock now
     
    • Haha Haha x 1
    #46 18ifix, Apr 4, 2019
  7. Atinder Saini

    Atinder Saini Well-Known Member

    Joined:
    Oct 17, 2017
    Messages:
    33
    Likes Received:
    1
    You unlocked via hardware?
     
    #47 Atinder Saini, Apr 4, 2019
  8. Ovanesn

    Ovanesn New Member

    Joined:
    Jan 28, 2019
    Messages:
    9
    Likes Received:
    2
    T2 firmware dump is from marked SPI memory IC.
     

    Attached Files:

    #48 Ovanesn, Apr 4, 2019
  9. Ovanesn

    Ovanesn New Member

    Joined:
    Jan 28, 2019
    Messages:
    9
    Likes Received:
    2
    Hi. Did you really unlock it?
     
    • Haha Haha x 2
    • Like Like x 1
    #49 Ovanesn, Apr 4, 2019
  10. Atinder Saini

    Atinder Saini Well-Known Member

    Joined:
    Oct 17, 2017
    Messages:
    33
    Likes Received:
    1
    Any updates?
     
    #50 Atinder Saini, Apr 17, 2019
  11. 18ifix

    18ifix Moderator

    Joined:
    May 12, 2015
    Messages:
    174
    Likes Received:
    41
    yes really i unlock it . many macbook 2018 . imac /macbook air 2018
     
    • Like Like x 1
    #51 18ifix, Apr 23, 2019
  12. chochorzm1

    chochorzm1 New Member

    Joined:
    Mar 8, 2019
    Messages:
    1
    Likes Received:
    0
    Cifam will you tell us some details :?
     
    #52 chochorzm1, Apr 23, 2019
  13. 3com

    3com New Member

    Joined:
    Jul 20, 2017
    Messages:
    17
    Likes Received:
    0
    How?? Ic?? Programmer??
     
    #53 3com, Apr 23, 2019
  14. jawaljawad37

    jawaljawad37 Well-Known Member

    Joined:
    Aug 1, 2015
    Messages:
    73
    Likes Received:
    6
    les discours sont facile
     
    • Like Like x 1
    #54 jawaljawad37, Apr 23, 2019
  15. vampirekiller

    vampirekiller New Member

    Joined:
    Sep 15, 2017
    Messages:
    2
    Likes Received:
    0
    #55 vampirekiller, Apr 29, 2019
    Last edited: Apr 30, 2019
  16. Atinder Saini

    Atinder Saini Well-Known Member

    Joined:
    Oct 17, 2017
    Messages:
    33
    Likes Received:
    1
    #56 Atinder Saini, Apr 29, 2019
  17. vampirekiller

    vampirekiller New Member

    Joined:
    Sep 15, 2017
    Messages:
    2
    Likes Received:
    0
    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 New Member

    Joined:
    Jul 20, 2017
    Messages:
    17
    Likes Received:
    0
    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
     

    Attached Files:

    #58 3com, May 10, 2019
  19. silentdie

    silentdie New Member

    Joined:
    May 23, 2019
    Messages:
    3
    Likes Received:
    0
    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
     
    #59 silentdie, May 23, 2019
  20. technical

    technical Moderator Staff Member

    Joined:
    Dec 13, 2013
    Messages:
    64,627
    Likes Received:
    4,729
    current Unavailable T2
     
    #60 technical, May 23, 2019
(You must log in or sign up to post here.)
Page 3 of 6
Loading...
Similar Threads - MacBook Touch 2018 Forum Date
MacBook Pro 13″ Touch Bar 2018 820-00850-A BIOS/UEFI Mar 30, 2019
MacBook Pro 15" Touch Bar 2018 820-01041 X1190 BIOS/UEFI Aug 20, 2018
MacBook Pro 15" Touch Bar 2019 820-01814 BIOS/UEFI Jun 5, 2019
MacBook Pro 15-inch Touch Bar A1707 820-00281-10 BIOS schematics 820-00281 Schematics Mar 18, 2019
MacBook Pro 13" Touch Bar 2017 820-00623 Intel 7th Kabylake BIOS/UEFI Jun 9, 2017
Tags:
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Accept Learn More...
    Dismiss Notice