MEC1633L

Discussion in 'BIOS/UEFI' started by zecabg, Feb 12, 2017.

MEC1633L 5 5 1votes
5/5, 1 vote

Page 2 of 3
  1. IO81

    IO81 Well-Known Member

    Joined:
    Jan 30, 2015
    Messages:
    176
    Likes Received:
    6
    thanks for reply do you have solution to program MEC 1633
     
    #21 IO81, Feb 25, 2018
  2. technical

    technical Moderator Staff Member

    Joined:
    Dec 13, 2013
    Messages:
    64,627
    Likes Received:
    4,729
    you can use rt809H
     
    #22 technical, Feb 25, 2018
  3. sherifbekhit

    sherifbekhit Well-Known Member

    Joined:
    Apr 23, 2015
    Messages:
    130
    Likes Received:
    0
    pins please i cant read this mec by svod , i need points
     
    #23 sherifbekhit, Apr 7, 2018
  4. sherifbekhit

    sherifbekhit Well-Known Member

    Joined:
    Apr 23, 2015
    Messages:
    130
    Likes Received:
    0
    Hi sir
    plz I need JTAG for MEC1633l on board Lenovo X240 VIUX1 NM-A091 REV 1.0
    Thanks for you
     
    #24 sherifbekhit, Apr 18, 2018
  5. sherifbekhit

    sherifbekhit Well-Known Member

    Joined:
    Apr 23, 2015
    Messages:
    130
    Likes Received:
    0
    Hi sir
    plz I need JTAG for MEC1633l on board Lenovo X240 VIUX1 NM-A091 REV 1.0
    Thanks
     
    #25 sherifbekhit, Apr 18, 2018
  6. 01ifix

    01ifix Well-Known Member

    Joined:
    Jun 10, 2015
    Messages:
    1,377
    Likes Received:
    103
    hi @cifam , could you please share the jtag point for this
     
    #26 01ifix, Apr 18, 2018
  7. 03ifix

    03ifix Moderator

    Joined:
    Sep 16, 2015
    Messages:
    511
    Likes Received:
    53
    Here is
     

    Attached Files:

    • Like Like x 2
    #27 03ifix, Apr 21, 2018
  8. mshtaq

    mshtaq Well-Known Member

    Joined:
    Oct 19, 2017
    Messages:
    46
    Likes Received:
    2
    HI
    Do you have T450 NM-A251 MEC1633L jtag points, please?

    Need help please!
     
    #28 mshtaq, May 14, 2018
  9. technical

    technical Moderator Staff Member

    Joined:
    Dec 13, 2013
    Messages:
    64,627
    Likes Received:
    4,729
    #29 technical, May 14, 2018
  10. 18ifix

    18ifix Moderator

    Joined:
    May 12, 2015
    Messages:
    174
    Likes Received:
    41
    no need to reprograme mec1633L if its new .just soldring and on the laptop .the bios on the laptop reprogram mec automatic
     
    #30 18ifix, May 15, 2018
  11. IO81

    IO81 Well-Known Member

    Joined:
    Jan 30, 2015
    Messages:
    176
    Likes Received:
    6
    so we can erase mec and power on laptop and it s done
     
    #31 IO81, May 15, 2018
  12. 18ifix

    18ifix Moderator

    Joined:
    May 12, 2015
    Messages:
    174
    Likes Received:
    41
    i dont try ..but i try new chip 1633 i just soldering and i on pc . the laptop work perfect without programing mec ...... but the problem is the serial number .
     
    #32 18ifix, May 15, 2018
  13. 03ifix

    03ifix Moderator

    Joined:
    Sep 16, 2015
    Messages:
    511
    Likes Received:
    53
    Yes you right.New Programmable i/o if new factory programming already no need to program.
     
    #33 03ifix, May 16, 2018
  14. bioshunger

    bioshunger Well-Known Member

    Joined:
    Dec 27, 2016
    Messages:
    78
    Likes Received:
    16
    Doesn't need to program MEC

    The supervisor password is stored in a SMSC MEC1633L of a TPM chip and not in the main UEFI EEPROM.

    BIOS is married to the internal TPM chip (SMSC) and contains a unique signature of that.

    Resetting this is complex because:

    It first involves reading the BIOS and creating a full dump. This is critical as otherwise you are stuffed trying to restore any other BIOS to it.

    One has to patch the dumped BIOS binaries and inject a small UEFI program. This program will read the secure eeprom, reset the TPM certificate and password and also rewrite the secure eeprom and reconstruct all data such as writing back serial number, RFID config/UUID/Type/checksums etc.

    Flash the patched BIOS dump (this will only function for that TP btw), start the laptop, while the BIOS is loading it will execute the unlock routine in the DXE module and unlock the SVP(supervisor password) and TPM.

    Finally, write the original BIOS dump back.
     
    • Like Like x 1
    #34 bioshunger, Jun 28, 2018
  15. asmshoab

    asmshoab Well-Known Member

    Joined:
    Feb 13, 2017
    Messages:
    96
    Likes Received:
    3
    Where keep bios password lenovo t440 ? mec or bios ?
     
    #35 asmshoab, Jun 28, 2018
  16. niggar

    niggar Well-Known Member

    Joined:
    May 15, 2017
    Messages:
    241
    Likes Received:
    14
    where i get the patch file and can i read mec1633l with rt809f
     
    #36 niggar, Jul 14, 2018
  17. technical

    technical Moderator Staff Member

    Joined:
    Dec 13, 2013
    Messages:
    64,627
    Likes Received:
    4,729
    #37 technical, Jul 14, 2018
  18. niggar

    niggar Well-Known Member

    Joined:
    May 15, 2017
    Messages:
    241
    Likes Received:
    14
    i only want to make sure can rt809f read and write ?
    yes or no ?
     
    #38 niggar, Jul 15, 2018
  19. technical

    technical Moderator Staff Member

    Joined:
    Dec 13, 2013
    Messages:
    64,627
    Likes Received:
    4,729
    no, need use RT809H
     
    #39 technical, Jul 15, 2018
  20. rustam

    rustam New Member

    Joined:
    Jul 1, 2015
    Messages:
    3
    Likes Received:
    0
    hi, can u send photo position jtag location thinkpad t540p ?
     
    #40 rustam, Aug 3, 2019
(You must log in or sign up to post here.)
Page 2 of 3
Loading...
Similar Threads - MEC1633L Forum Date
IBM-Lenovo T440P with SMSC MEC1633L-AUE BIOS/UEFI Dec 6, 2018
  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